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Extract from the Register of European Patents

EP About this file: EP4038154

EP4038154 - REVERSE PHOTOCHROMIC INKS, AND ASSOCIATED METHODS AND WRITING INSTRUMENTS [Right-click to bookmark this link]
StatusRequest for examination was made
Status updated on  08.07.2022
Database last updated on 06.07.2024
FormerThe international publication has been made
Status updated on  03.04.2021
Most recent event   Tooltip17.04.2024Amendment by applicant 
Applicant(s)For all designated states
Sanford, L.P.
6655 Peachtree Dunwoody Road
Atlanta, GA 30328 / US
[2022/32]
Inventor(s)01 / CZAPLEWSKI, Kenneth
519 Hamilton Avenue
Westmont, Illinois 60559 / US
 [2022/32]
Representative(s)Page White Farrer
Bedford House
21a John Street
London WC1N 2BF / GB
[N/P]
Former [2022/32]Roberts, David
Page White & Farrer
Bedford House
John Street
London WC1N 2BF / GB
Application number, filing date20869275.623.09.2020
[2022/32]
WO2020US52196
Priority number, dateUS201962904889P24.09.2019         Original published format: US 201962904889 P
US201962904900P24.09.2019         Original published format: US 201962904900 P
[2022/32]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2021061757
Date:01.04.2021
Language:EN
[2021/13]
Type: A1 Application with search report 
No.:EP4038154
Date:10.08.2022
Language:EN
The application published by WIPO in one of the EPO official languages on 01.04.2021 takes the place of the publication of the European patent application.
[2022/32]
Search report(s)International search report - published on:US01.04.2021
(Supplementary) European search report - dispatched on:EP20.09.2023
ClassificationIPC:C09D11/17, C09D11/32, C09D11/50, C09D11/18
[2023/42]
CPC:
C09D11/18 (EP,US); C09D11/50 (EP,US); C09D11/17 (EP,US)
Former IPC [2022/32]C09D11/17, C09D11/32, C09D11/50
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 [2022/32]
TitleGerman:UMGEKEHRTE PHOTOCHROME TINTEN SOWIE ZUGEHÖRIGE VERFAHREN UND SCHREIBGERÄTE[2022/32]
English:REVERSE PHOTOCHROMIC INKS, AND ASSOCIATED METHODS AND WRITING INSTRUMENTS[2022/32]
French:ENCRES PHOTOCHROMIQUES INVERSES, PROCÉDÉS ET INSTRUMENTS D'ÉCRITURE ASSOCIÉS[2022/32]
Entry into regional phase13.04.2022National basic fee paid 
13.04.2022Search fee paid 
13.04.2022Designation fee(s) paid 
13.04.2022Examination fee paid 
Examination procedure23.07.2021Request for preliminary examination filed
International Preliminary Examining Authority: US
13.04.2022Examination requested  [2022/32]
16.04.2024Amendment by applicant (claims and/or description)
16.04.2024Date on which the examining division has become responsible
Fees paidRenewal fee
27.09.2022Renewal fee patent year 03
27.09.2023Renewal fee patent year 04
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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.
Documents cited:Search[XI]JPH0228683  (MINOLTA CAMERA KK) [X] 1,3-5,7-9,12 * the whole document * [I] 2,6,10,11;
 [XI]US5593486  (OLIVER JOHN F [CA], et al) [X] 1-5,7-9 * column 45, line 33 - line 39 * * column 49, line 35 - line 39 * * examples * [I] 6,10-12;
 [XI]US2008162162  (REICHELSHEIMER JAY [US]) [X] 1,3,7-9,12 * claims; examples; figures; paragraphs [0016] , [0017] * [I] 2,4-6,10,11;
 [XI]US2009322070  (REICHELSHEIMER JAY [US], et al) [X] 1,3,5,7-9,12 * claims; paragraphs [0023] , [0 30]; figure 3 * [I] 2,4,6,10,11;
 [XI]JP2010270163  (PILOT INK CO LTD) [X] 1-9 * the whole document * [I] 10,13-15;
 [A]  - AIKEN STUART ET AL, "Negatively photochromic organic compounds: Exploring the dark side", DYES AND PIGMENTS, ELSEVIER APPLIED SCIENCE PUBLISHERS BARKING, GB, (20170927), vol. 149, doi:10.1016/J.DYEPIG.2017.09.057, ISSN 0143-7208, pages 92 - 121, XP085306287 [A] 1-15 * the whole document *

DOI:   http://dx.doi.org/10.1016/j.dyepig.2017.09.057
International search[A]US2006053975  (SHIBAHASHI YUTAKA [JP], et al) [A] 17-24 * ; entire document, but especially: para [0007], para [0009], para [0012], para [0072], para [0074], para [0113] *;
 [A]US2008085384  (YLITALO CAROLINE M [US], et al) [A] 17-24 * ; para [0006], para [0029], para [0033], para [0093], para [0094] *;
 [Y]US2012038718  (KAZMAIER PETER M [CA], et al) [Y] 26-29 * ; entire document, but especially: para [0003], para [0016], para [0017] *;
 [XYA]US2016024321  (WANG YONG [CN], et al) [X] 1-15, 25, 30 * ; entire document, but especially: para [0011]. para [0018], para [0033], para [0035], para [0065], para [0066] * [Y] 26-29 [A] 16-24;
 [A]US2017058139  (CLAYTON TERRILL SCOTT [US], et al) [A] 1-30* ; entire document, but especially: para [0016], para [0052], para [0125]- para [0128] *;
 [A]US2019284406  (LEVINE ANDREW SETH [US], et al) [A] 16 * ; entire document, but especially: para [0003], para [0016], para [0017] *;
 [A]  - Anonymous, "Tinuvin 477-DW Technical Data Sheet", Tinuvin 477-DW Technical Data Sheet, (20101201), pages 1 - 3, XP055243922 [A] 19 * ; page 1 *
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.