Concessão da patente
#16.1
02/26/1985
RPI 749
The letters patent expired on 08/25/1992: 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: 02/26/1985. We update with every new RPI gazette, published weekly.
Applicants
Universal Oil Products Company
US
Inventors
W. B. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
02/26/1985
RPI 749
09/25/1984
RPI 727
#12.1
12/06/1983
RPI 685
#9.1
08/16/1983
RPI 669
#6.1
02/01/1983
RPI 641
#6.1
12/29/1981
RPI 584
#15.11
Procedimento automático de reclassificação. A classificação IPC anterior era C07C 3/54.
03/20/2018
RPI 2463
#21.1
08/25/1992
RPI 1134
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.