Concessão da patente
#16.1
05/31/1983
RPI 658
The letters patent expired on 07/20/1993: 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: 05/31/1983. We update with every new RPI gazette, published weekly.
Applicants
EXXON RESEARCH ENGINEERING CO
Inventors
B. S. (pessoa física)
G. A. (pessoa física)
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
05/31/1983
RPI 658
#13.1
03/15/1983
RPI 647
#9.1
10/26/1982
RPI 627
04/06/1982
RPI 598
#6.1
02/09/1982
RPI 590
#21.1
07/20/1993
RPI 1181
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.