Notificação para pagamento de retribuição
#13.1
10/17/1989
RPI 991
Application data
Number
PI8305170Type
Filing
Publication
The letters patent expired on 07/01/2008: 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: 10/17/1989. We update with every new RPI gazette, published weekly.
Applicants
Petróleo Brasileiro S/A - Petrobrás
RJ, BR
Inventors
H. C. (pessoa física)
BR
M. R. (pessoa física)
BR
R. D. (pessoa física)
BR
R. I. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#13.1
10/17/1989
RPI 991
#9.1
06/20/1989
RPI 974
#6.1
03/07/1989
RPI 959
#4.1
08/06/1985
RPI 772
#3.1
04/30/1985
RPI 758
#2.1
11/22/1983
RPI 683
#21.1
Patente extinta em 22/09/98
07/01/2008
RPI 1956
#16.1
03/20/1990
RPI 1010
From the same holder
Same category
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