15.9
11/28/1989
RPI 997
Application data
Number
PI8706212Type
Filing
Publication
PCT
US1987000620 The letters patent expired on 07/29/2008: 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: 11/28/1989. We update with every new RPI gazette, published weekly.
Applicants
Chevron Research Company
US
Inventors
B. P. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
11/28/1989
RPI 997
#4.1
11/28/1989
RPI 997
#1.3
02/23/1988
RPI 905
#21.1
Patente extinta em 18/03/2002
07/29/2008
RPI 1960
#16.1
09/28/1993
RPI 1191
#13.1
07/27/1993
RPI 1182
#9.1
04/06/1993
RPI 1166
#6.1
07/21/1992
RPI 1129
From the same holder
Same category
Patent monitoring
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