Concessão da patente
#16.1
08/30/1983
RPI 671
The letters patent expired on 05/24/1994: 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: 08/30/1983. We update with every new RPI gazette, published weekly.
Applicants
P. B. (pessoa física)
Inventors
O. M. (pessoa física)
S. L. (pessoa física)
T. C. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
08/30/1983
RPI 671
#13.1
05/17/1983
RPI 656
#9.1
12/07/1982
RPI 633
08/24/1982
RPI 618
#6.1
01/26/1982
RPI 588
#21.1
05/24/1994
RPI 1225
12/29/1992
RPI 1152
From the same holder
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