100
11/07/1989
RPI 994
Application data
Number
PI8206742Type
Filing
Publication
The letters patent expired on 07/01/2008: 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: 11/07/1989. We update with every new RPI gazette, published weekly.
Applicants
Chevron Research Company
US
Inventors
R. M. (pessoa física)
US
T. E. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
11/07/1989
RPI 994
04/11/1989
RPI 964
#12.2
08/16/1988
RPI 930
#15.11
08/02/1988
RPI 928
#9.2
04/26/1988
RPI 914
#7.1
07/28/1987
RPI 875
#6.1
10/21/1986
RPI 835
#5.1
04/22/1986
RPI 809
#4.1
12/31/1985
RPI 793
#15.11
09/18/1984
RPI 726
#3.1
10/04/1983
RPI 676
#2.1
01/11/1983
RPI 638
#21.1
Patente extinta em 22/11/97
07/01/2008
RPI 1956
#16.1
03/20/1990
RPI 1010
Same category
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