Solicitação de exame técnico
#4.1
02/08/1989
RPI 955
Application data
Number
PI8507282Type
Filing
Publication
PCT
US1985001786 The letters patent expired on 07/15/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.
Talk to a specialistLatest action published by the INPI: 02/08/1989. We update with every new RPI gazette, published weekly.
Applicants
A. C. (pessoa física)
JP
Chevron Research And Technology Company
US
Chevron Research Company
US
Chevron U.S.A. INC.
US
T. C. (pessoa física)
JP
Inventors
T. L. (pessoa física)
US
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
02/08/1989
RPI 955
#1.3
10/27/1987
RPI 888
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: C07C 149/00; A01N 35/10.
03/27/2018
RPI 2464
#21.1
Patente extinta em 19/09/2000
07/15/2008
RPI 1958
#25.1
Transferido de : Tomen Corporation
10/25/2005
RPI 1816
#25.1
Transferido de: Chevron U.S.A INC.
06/08/1999
RPI 1483
#25.1
Transferido por incorporação de: Chevron Research And Technology Company
05/11/1999
RPI 1479
#25.4
Alterado de: Chevron Research Company
03/30/1999
RPI 1473
#25.12
Referência RPI 1458 de 15/12/98; código (25.3)
02/17/1999
RPI 1467
#25.3
Alterado de: Chevron Research Company & Cia@Referência:RPI nº 1454 de 17/11/98; código: 25.4; item: 71e Co
12/15/1998
RPI 1458
#25.4
Alterado de: Chevron Research Company
11/17/1998
RPI 1454
#16.1
04/26/1994
RPI 1221
#13.1
02/22/1994
RPI 1212
#9.1
09/08/1993
RPI 1188
#6.1
03/02/1993
RPI 1161
#6.1
04/28/1992
RPI 1117
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