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Extract from the Register of European Patents

EP About this file: EP0452084

EP0452084 - Process for the conversion of propane und butane [Right-click to bookmark this link]
Former [1991/42]Catalysts for the conversion of propane und butane
[1994/24]
StatusNo opposition filed within time limit
Status updated on  14.04.1995
Database last updated on 16.07.2024
Most recent event   Tooltip14.04.1995No opposition filed within time limitpublished on 07.06.1995 [1995/23]
Applicant(s)For all designated states
ZEOFUELS RESEARCH (PROPRIETARY) LIMITED
Jackson Street, Factoria Krugersdorp
Transvaal / ZA
[N/P]
Former [1991/42]For all designated states
ZEOFUELS RESEARCH (PROPRIETARY) LIMITED
Jackson Street, Factoria
Krugersdorp, Transvaal / ZA
Inventor(s)01 / Hutchings, Graham John
17 North End
Osmotherley, North Yorkshire, DL6 3BA / GB
02 / Themistocleous, Thermistoclis
17 Old Kitchen Road
Bryanston, Sandton, Transvaal / ZA
03 / Copperthwaite, Richard George
14 3rd Avenue, Parktown North
Johannesburg, Transvaal / ZA
[1991/42]
Representative(s)Pearce, Anthony Richmond
Marks & Clerk LLP Alpha Tower Suffolk Street Queensway Birmingham
B1 1TT / GB
[N/P]
Former [1991/45]Pearce, Anthony Richmond
MARKS & CLERK, Alpha Tower, Suffolk Street Queensway
Birmingham B1 1TT / GB
Former [1991/42]Carpenter, David
MARKS & CLERK, Alpha Tower, Suffolk Street Queensway
Birmingham B1 1TT / GB
Application number, filing date91303106.809.04.1991
[1991/42]
Priority number, dateZA1990000272210.04.1990         Original published format: ZA 902722
[1991/42]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0452084
Date:16.10.1991
Language:EN
[1991/42]
Type: A3 Search report 
No.:EP0452084
Date:21.11.1991
Language:EN
[1991/47]
Type: B1 Patent specification 
No.:EP0452084
Date:15.06.1994
Language:EN
[1994/24]
Search report(s)(Supplementary) European search report - dispatched on:EP02.10.1991
ClassificationIPC:B01J29/00, C07C6/00, C07C4/00
[1991/42]
CPC:
B01J29/00 (EP,US); B01J37/06 (EP,US); C07C4/06 (EP,US);
C07C6/10 (EP,US); C07C2529/70 (EP,US)
Designated contracting statesAT,   BE,   CH,   DE,   DK,   ES,   FR,   GB,   GR,   IT,   LI,   LU,   NL,   SE [1991/42]
TitleGerman:Verfahren für die Umwandlung von Propan und Butan[1994/24]
English:Process for the conversion of propane und butane[1994/24]
French:Procede pour la conversion de propane et de butane[1994/24]
Former [1991/42]Katalysatoren für die Umwandlung von Propan und Butan
Former [1991/42]Catalysts for the conversion of propane und butane
Former [1991/42]Catalyseurs pour la conversion de propane et de butane
Examination procedure29.11.1991Examination requested  [1992/04]
21.09.1992Despatch of a communication from the examining division (Time limit: M04)
21.12.1992Reply to a communication from the examining division
18.05.1993Despatch of a communication from the examining division (Time limit: M02)
01.07.1993Reply to a communication from the examining division
06.08.1993Despatch of communication of intention to grant (Approval: Yes)
22.10.1993Communication of intention to grant the patent
09.12.1993Fee for grant paid
09.12.1993Fee for publishing/printing paid
Opposition(s)16.03.1995No opposition filed within time limit [1995/23]
Fees paidRenewal fee
13.04.1993Renewal fee patent year 03
11.04.1994Renewal 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:Search[A]US3997474  (MIALE JOSEPH N, et al);
 [A]US4172856  (SPENCER MICHAEL S [GB], et al);
 [Y]SU829655  (INST NEORGANICHESKOI FIZ [SU]);
 [Y]EP0307239  (PRATLEY INVESTMENTS [ZA])
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.