Solicitação de exame técnico
#4.1
01/31/1989
RPI 954
Application data
Number
PI8604498Type
Filing
Publication
The letters patent expired on 07/22/2008: 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: 01/31/1989. We update with every new RPI gazette, published weekly.
Applicants
Exxonmobil Research and Engineering Company
US
Exxon Research And Engineering Company
US
Inventors
F. F. (pessoa física)
US
S. B. (pessoa física)
US
W. T. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
01/31/1989
RPI 954
#3.1
05/19/1987
RPI 865
#2.1
03/24/1987
RPI 857
#21.1
Patente extinta em 19/09/2001
07/22/2008
RPI 1959
#25.4
Alterado de Exxon Research and Enginnering Company.
06/19/2001
RPI 1589
#16.1
02/16/1994
RPI 1211
#9.1
07/20/1993
RPI 1181
#6.1
07/07/1992
RPI 1127
#6.1
09/17/1991
RPI 1085
08/07/1990
RPI 1027
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.