Pedido de certificado de adição de invenção
#5.1
11/21/1989
RPI 996
Application data
Number
PI8505888Type
Filing
Publication
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: 11/21/1989. We update with every new RPI gazette, published weekly.
Applicants
Chevron Research Company
US
Inventors
J. K. (pessoa física)
US
J. D. (pessoa física)
US
R. W. (pessoa física)
US
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#5.1
11/21/1989
RPI 996
#4.1
07/18/1989
RPI 978
#3.1
06/16/1987
RPI 869
#2.1
02/12/1986
RPI 799
#21.1
Patente extinta em 22/11/2000
07/15/2008
RPI 1958
#16.1
05/31/1994
RPI 1226
#9.1
10/26/1993
RPI 1195
#6.1
02/24/1993
RPI 1160
#6.1
11/19/1991
RPI 1094
From the same holder
Same category
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