Concessão da patente
#16.1
04/30/1985
RPI 758
Application data
Number
PI8201725Type
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: 04/30/1985. We update with every new RPI gazette, published weekly.
Applicants
Petróleo Brasileira S/A - Petrobrás
RJ, BR
Petróleo Brasileiro S/A - Petrobrás
RJ, BR
Inventors
B. D. (pessoa física)
S. D. (pessoa física)
T. K. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
04/30/1985
RPI 758
#13.1
12/11/1984
RPI 738
#9.1
08/21/1984
RPI 722
#4.1
01/10/1984
RPI 690
#3.1
11/08/1983
RPI 681
#2.1
05/11/1982
RPI 603
#21.1
Patente extinta em 26/03/97
07/01/2008
RPI 1956
From the same holder
Same category
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