Concessão da patente
#16.1
01/31/1984
RPI 693
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: 01/31/1984. We update with every new RPI gazette, published weekly.
Applicants
PENNWALT CORP
Inventors
G. J. (pessoa física)
H. J. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
01/31/1984
RPI 693
#13.1
11/22/1983
RPI 683
#9.1
08/02/1983
RPI 667
#6.1
11/16/1982
RPI 630
12/29/1981
RPI 584
#21.1
05/03/1994
RPI 1222
03/10/1992
RPI 1110
03/10/1992
RPI 1110
#20.1
11/05/1991
RPI 1092
From the same holder
Same category
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