Concessão da patente
#16.1
08/30/1983
RPI 671
The letters patent expired on 04/04/1995: 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
R. O. (pessoa física)
Inventors
A. P. (pessoa física)
E. H. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
08/30/1983
RPI 671
#13.1
06/28/1983
RPI 662
#9.1
03/08/1983
RPI 646
#6.1
09/08/1982
RPI 620
#21.1
04/04/1995
RPI 1270
From the same holder
Same category
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