Concessão da patente
#16.1
09/27/1988
RPI 936
The letters patent expired on 09/21/1993: 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: 09/27/1988. We update with every new RPI gazette, published weekly.
Applicants
PHILLIPS PETROLEUM CO
Inventors
D. G. (pessoa física)
M. D. (pessoa física)
N. R. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
09/27/1988
RPI 936
#13.1
06/21/1988
RPI 922
#9.1
03/01/1988
RPI 906
#6.1
02/08/1983
RPI 642
#21.1
09/21/1993
RPI 1190
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.