Concessão da patente
#16.1
06/30/1987
RPI 871
The letters patent expired on 05/03/1994: 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: 06/30/1987. We update with every new RPI gazette, published weekly.
Applicants
ATLANTIC RICHFIELD CO
Inventors
R. R. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
06/30/1987
RPI 871
02/17/1987
RPI 852
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06/28/1983
RPI 662
#9.1
03/08/1983
RPI 646
12/22/1981
RPI 583
#5.1
10/13/1981
RPI 573
#21.1
05/03/1994
RPI 1222
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Same category
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