20.7
05/26/1987
RPI 866
The letters patent expired on 12/07/1993: 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: 05/26/1987. We update with every new RPI gazette, published weekly.
Applicants
Gerobrás Indústria e Comércio Ltda.
SP, BR
Inventors
G. K. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
05/26/1987
RPI 866
#16.1
07/29/1986
RPI 823
#13.1
04/15/1986
RPI 808
#9.1
10/22/1985
RPI 783
04/23/1985
RPI 757
#6.1
09/11/1984
RPI 725
#4.1
12/27/1983
RPI 688
#3.1
12/15/1981
RPI 582
#21.1
12/07/1993
RPI 1201
From the same holder
Same category
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