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Extract from the Register of European Patents

EP About this file: EP3755986

EP3755986 - ON-BOARD PROPULSION TESTING APPARATUS [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  19.12.2025
Database last updated on 28.03.2026
FormerThe patent has been granted
Status updated on  10.01.2025
FormerGrant of patent is intended
Status updated on  05.09.2024
FormerExamination is in progress
Status updated on  25.11.2022
FormerRequest for examination was made
Status updated on  27.11.2020
FormerThe international publication has been made
Status updated on  12.10.2019
Most recent event   Tooltip23.01.2026Lapse of the patent in a contracting state
New state(s): BE, CH		published on 25.02.2026  [2026/09]
Applicant(s)For all designated states
Michigan Technological University
1400 Townsend Drive
Houghton, Michigan 49931 / US
For all designated states
Orbion Space Technology, Inc.
2521 7 Mile Point Road
Allouez MI 49805 / US
[2021/01]
Inventor(s)01 / KING, Lyon B.
815 RL Smith Bldg 1400 Townsend Drive
Hougton, Michigan 49931 / US
 [2021/01]
Representative(s)Marks & Clerk LLP
15 Fetter Lane
London EC4A 1BW / GB
[2025/07]
Former [2021/01]Dauncey, Mark Peter
Marks & Clerk LLP
1 New York Street
Manchester M1 4HD / GB
Application number, filing date19780743.105.04.2019
[2021/01]
WO2019US26144
Priority number, dateUS201862653067P05.04.2018         Original published format: US 201862653067 P
[2021/01]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2019195782
Date:10.10.2019
Language:EN
[2019/41]
Type: A1 Application with search report 
No.:EP3755986
Date:30.12.2020
Language:EN
The application published by WIPO in one of the EPO official languages on 10.10.2019 takes the place of the publication of the European patent application.
[2020/53]
Type: B1 Patent specification 
No.:EP3755986
Date:12.02.2025
Language:EN
[2025/07]
Search report(s)International search report - published on:US10.10.2019
(Supplementary) European search report - dispatched on:EP15.10.2021
ClassificationIPC:B64G7/00, G01M15/02, G01M15/14
[2021/46]
CPC:
G01M15/02 (EP,CN,US); F01D17/02 (US); B64G1/1078 (EP,CN,US);
B64G7/00 (EP); F01D21/003 (US); F02K9/96 (US);
G01M15/14 (EP,CN,US) (-)
Former IPC [2021/01]G01M15/02, G01M15/14
Designated contracting statesAL,   AT,   BE,   BG,   CH,   CY,   CZ,   DE,   DK,   EE,   ES,   FI,   FR,   GB,   GR,   HR,   HU,   IE,   IS,   IT,   LI,   LT,   LU,   LV,   MC,   MK,   MT,   NL,   NO,   PL,   PT,   RO,   RS,   SE,   SI,   SK,   SM,   TR [2021/01]
Extension statesBANot yet paid
MENot yet paid
Validation statesKHNot yet paid
MANot yet paid
MDNot yet paid
TNNot yet paid
TitleGerman:BORDEIGENE ANTRIEBSTESTVORRICHTUNG[2021/01]
English:ON-BOARD PROPULSION TESTING APPARATUS[2021/01]
French:APPAREIL DE TEST DE PROPULSION EMBARQUÉ[2021/01]
Entry into regional phase24.09.2020National basic fee paid 
24.09.2020Search fee paid 
24.09.2020Designation fee(s) paid 
24.09.2020Examination fee paid 
Examination procedure24.09.2020Examination requested  [2020/53]
12.05.2022Amendment by applicant (claims and/or description)
29.11.2022Despatch of a communication from the examining division (Time limit: M04)
11.04.2023Reply to a communication from the examining division
29.08.2024Cancellation of oral proceeding that was planned for 08.10.2024
06.09.2024Communication of intention to grant the patent
08.10.2024Date of oral proceedings (cancelled)
06.01.2025Fee for grant paid
06.01.2025Fee for publishing/printing paid
06.01.2025Receipt of the translation of the claim(s)
Opposition(s)13.11.2025No opposition filed within time limit [2026/04]
Fees paidRenewal fee
27.04.2021Renewal fee patent year 03
27.04.2022Renewal fee patent year 04
27.04.2023Renewal fee patent year 05
29.04.2024Renewal fee patent year 06
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Patent Court		 See the Register of the Unified Patent Court for opt-out data
Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Lapses during opposition  TooltipAT12.02.2025
BG12.02.2025
CZ12.02.2025
DK12.02.2025
EE12.02.2025
ES12.02.2025
FI12.02.2025
HR12.02.2025
LV12.02.2025
MC12.02.2025
NL12.02.2025
PL12.02.2025
RO12.02.2025
SE12.02.2025
SK12.02.2025
SM12.02.2025
LU05.04.2025
BE30.04.2025
CH30.04.2025
NO12.05.2025
RS12.05.2025
GR13.05.2025
IS12.06.2025
PT12.06.2025
[2026/09]
Former [2026/05]AT12.02.2025
BG12.02.2025
CZ12.02.2025
DK12.02.2025
EE12.02.2025
ES12.02.2025
FI12.02.2025
HR12.02.2025
LV12.02.2025
MC12.02.2025
NL12.02.2025
PL12.02.2025
RO12.02.2025
SE12.02.2025
SK12.02.2025
SM12.02.2025
LU05.04.2025
NO12.05.2025
RS12.05.2025
GR13.05.2025
IS12.06.2025
PT12.06.2025
Former [2026/04]AT12.02.2025
BG12.02.2025
CZ12.02.2025
DK12.02.2025
EE12.02.2025
ES12.02.2025
FI12.02.2025
HR12.02.2025
LV12.02.2025
NL12.02.2025
PL12.02.2025
RO12.02.2025
SE12.02.2025
SK12.02.2025
SM12.02.2025
LU05.04.2025
NO12.05.2025
RS12.05.2025
GR13.05.2025
IS12.06.2025
PT12.06.2025
Former [2025/49]AT12.02.2025
BG12.02.2025
CZ12.02.2025
DK12.02.2025
EE12.02.2025
ES12.02.2025
FI12.02.2025
HR12.02.2025
LV12.02.2025
NL12.02.2025
PL12.02.2025
RO12.02.2025
SE12.02.2025
SK12.02.2025
SM12.02.2025
NO12.05.2025
RS12.05.2025
GR13.05.2025
IS12.06.2025
PT12.06.2025
Former [2025/48]AT12.02.2025
BG12.02.2025
CZ12.02.2025
DK12.02.2025
EE12.02.2025
ES12.02.2025
FI12.02.2025
HR12.02.2025
LV12.02.2025
NL12.02.2025
PL12.02.2025
SE12.02.2025
SM12.02.2025
NO12.05.2025
RS12.05.2025
GR13.05.2025
IS12.06.2025
PT12.06.2025
Former [2025/47]BG12.02.2025
DK12.02.2025
ES12.02.2025
FI12.02.2025
HR12.02.2025
LV12.02.2025
NL12.02.2025
PL12.02.2025
SE12.02.2025
SM12.02.2025
NO12.05.2025
RS12.05.2025
GR13.05.2025
IS12.06.2025
PT12.06.2025
Former [2025/46]BG12.02.2025
ES12.02.2025
FI12.02.2025
HR12.02.2025
LV12.02.2025
NL12.02.2025
PL12.02.2025
SE12.02.2025
SM12.02.2025
NO12.05.2025
RS12.05.2025
GR13.05.2025
IS12.06.2025
PT12.06.2025
Former [2025/42]BG12.02.2025
ES12.02.2025
FI12.02.2025
HR12.02.2025
LV12.02.2025
NL12.02.2025
PL12.02.2025
SE12.02.2025
NO12.05.2025
RS12.05.2025
GR13.05.2025
IS12.06.2025
PT12.06.2025
Former [2025/35]BG12.02.2025
ES12.02.2025
FI12.02.2025
HR12.02.2025
LV12.02.2025
NL12.02.2025
PL12.02.2025
NO12.05.2025
RS12.05.2025
GR13.05.2025
IS12.06.2025
PT12.06.2025
Former [2025/34]ES12.02.2025
FI12.02.2025
HR12.02.2025
LV12.02.2025
NL12.02.2025
PL12.02.2025
NO12.05.2025
RS12.05.2025
IS12.06.2025
PT12.06.2025
Former [2025/33]ES12.02.2025
FI12.02.2025
PL12.02.2025
RS12.05.2025
Documents cited:Search[XAYI] CN105067293  (LANZHOU INST PHYSICS CHINESE ACADEMY OF SPACE TECH et al.) [X] 1,2,4,5,7,11,12 * the whole document * * figures 1,2 *[A] 13-15 [Y] 6 [I] 3,8-10
 [YA] WO2016181360  (UNIV JOHANNESBURG WITWATERSRAND et al.) [Y] 6 * figure 13 * * page 16, lines 7-10 * * page 7, lines 26-30 *[A] 13-15
 [A] JP2015182706  (TAIYO NIPPON SANSO CORP et al.) [A] 1-15 * figure 1 *
 [A] JPS62258900  (KOBE STEEL LTD et al.) [A] 1-15 * figure 1 *
 [YA]   MIGLIACCIO A ET AL: "Vacuum testing of a micropropulsion system based on solid propellant cool gas generators", 61ST INTERNATIONAL ASTRONAUTICAL CONGRESS, PRAGUE, CZECH REPUBLIC, 27 SEPTEMBER - 1 OCTOBER 2010, 29 September 2010 (2010-09-29), XP055847467 [Y] 6 * pages 1,4 * * figure VII *[A] 13-15
International search[A] WO2016181360  (UNIV JOHANNESBURG WITWATERSRAND et al.) [A] 1-18 * , entire reference especially Fig. 3 and 13 and page 6, In 35-36; page 7, In 26-30; page 8, In 1-2; page 12, In 33-44; page 13, In 1-2; page 16, In 9-29; page 18, In 10-16; page 20, In 1-4; page 36, In 41-44; page 37, In 1-2 *
 [A] US2008314134  (MAINVILLE DANIEL et al.) [A] 1-18 * , entire reference especially Fig. 3-4 and 6-7 and para [0023]-[0025], [0027], [0031], [0033]-[0034 *
 [A] US2005230557  (AGHILI FARHAD et al.) [A] 1-18 * , entire reference *
 [A] US2001039832  (SONDEY THOMAS F et al.) [A] 1-18 * , entire reference *
 [A] US2016273523  (KING DAVID Q et al.) [A] 1-18 * , entire reference *
ExaminationUS2015369413
by applicantUS201862653067
 CN105067293
 WO2016181360
 JP2015182706
 JPS62258900
   MIGLIACCIO ET AL.: "Vacuum testing of a micropropulsion system based on solid propellant cool gas generators", INTERNATIONAL ASTRONAUTICAL CONGRESS, 27 September 2010 (2010-09-27)
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.