Concessão da patente
#16.1
04/29/1980
RPI 497
The letters patent expired on 11/24/1992: 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: 04/29/1980. We update with every new RPI gazette, published weekly.
Applicants
R. C. (pessoa física)
US
Inventors
E. B. (pessoa física)
IPC Classification
No IPC classification.
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
04/29/1980
RPI 497
#21.1
11/24/1992
RPI 1147
#20.1
10/02/1990
RPI 1035
From the same holder
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