Concessão da patente
#16.1
09/01/1981
RPI 567
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: 09/01/1981. We update with every new RPI gazette, published weekly.
Applicants
De Beers Industrial Diamond Division Limited
ZA
Inventors
E. B. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
09/01/1981
RPI 567
#21.1
11/17/1992
RPI 1146
Same category
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