18.8
07/28/1987
RPI 875
The letters patent expired on 11/17/1992: 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: 07/28/1987. We update with every new RPI gazette, published weekly.
Applicants
B. C. (pessoa física)
US
Inventors
E. B. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
07/28/1987
RPI 875
#18.2
06/02/1987
RPI 867
#16.1
08/18/1981
RPI 565
#21.1
11/17/1992
RPI 1146
From the same holder
Same category
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