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Extract from the Register of European Patents

EP About this file: EP0036425

EP0036425 - ALTERNATE LIQUID/GASEOUS FUEL OPERATION OF ENGINES [Right-click to bookmark this link]
StatusThe application has been refused
Status updated on  23.07.1984
Database last updated on 30.09.2024
Most recent event   Tooltip31.07.2009Change - representativepublished on 02.09.2009  [2009/36]
Applicant(s)For all designated states
GARRETSON EQUIPMENT CO., INC.
P.O. Box 111
Mt. Pleasant, IA 52641 / US
[1981/39]
Inventor(s)01 / GARRETSON, Keith Howard
Rural Route
Salem, IA 52649 / US
[1981/39]
Representative(s)Harrison, David Christopher, et al
Mewburn Ellis LLP
City Tower
40 Basinghall Street
London EC2V 5DE / GB
[N/P]
Former [2009/36]Harrison, David Christopher, et al
Mewburn Ellis LLP 33 Gutter Lane London
EC2V 8AS / GB
Former [1981/39]Harrison, David Christopher, et al
MEWBURN ELLIS York House 23 Kingsway
London WC2B 6HP / GB
Application number, filing date80901917.712.09.1980
[1981/39]
WO1980US01175
Priority number, dateUS1979008184204.10.1979         Original published format: US 81842
[1981/39]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report
No.:WO8101033
Date:16.04.1981
[1981/09]
Type: A1 Application with search report 
No.:EP0036425
Date:30.09.1981
Language:EN
The application published by WIPO in one of the EPO official languages on 16.04.1981 takes the place of the publication of the European patent application.
[1981/39]
Search report(s)(Supplementary) European search report - dispatched on:EP22.04.1982
ClassificationIPC:F02M21/02
[1981/39]
CPC:
F02M13/08 (EP); F02M35/04 (EP); F02B3/06 (EP)
Designated contracting statesAT,   CH,   DE,   FR,   GB,   LI,   NL,   SE [1981/39]
TitleGerman:WECHSELWEISE BEDIENUNG VON MOTOREN MIT FLÜSSIGEM/GASARTIGEM BRENNSTOFF[1981/39]
English:ALTERNATE LIQUID/GASEOUS FUEL OPERATION OF ENGINES[1981/39]
French:FONCTIONNEMENT ALTERNATIF DE MOTEURS EN COMBUSTIBLE LIQUIDE/GAZEUX[1981/39]
File destroyed:14.07.1990
Entry into regional phase10.06.1981National basic fee paid 
10.06.1981Search fee paid 
10.06.1981Designation fee(s) paid 
08.10.1981Examination fee paid 
Examination procedure08.10.1981Examination requested  [1981/51]
10.12.1982Despatch of a communication from the examining division (Time limit: M04)
10.03.1983Reply to a communication from the examining division
19.08.1983Despatch of communication of intention to grant (Approval: )
14.11.1983Communication of intention to grant the patent
06.04.1984Despatch of communication that the application is refused, reason: formalities examination [1984/39]
16.04.1984Application refused, date of legal effect [1984/39]
Fees paidRenewal fee
17.09.1982Renewal fee patent year 03
26.09.1983Renewal fee patent year 04
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Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Documents cited:SearchUS2939775  [ ] (MIDDLETON JOHN R L, et al);
 FR2243341  [ ] (LANDI DEN HARTOG BV [NL]);
 GB1469464  [ ] (LANDI DEN HARTOG BV)
International search[A]US2927848  (RICHARD BAVERSTOCK);
 [A]US2983592  (JONES SAM P);
 [A]US3282664  (RICHARD BAVERSTOCK);
 [A]US3421483  (FOX CLARENCE D);
 [A]US3687119  (HOOGEBOOM ADRIANUS JOHANNES TH);
 [A]US3960126  (SHINODA KAZUO);
 [A]US4020810  (BAVERSTOCK RICHARD);
 [A]US4063905  (JOHNSON ROY HENRY, et al);
 [A]US4098248  (TODD WILLIAM L)
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.