Concessão da patente
#16.1
08/30/1983
RPI 671
The letters patent expired on 07/13/1993: 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
CARBORUNDUM CO
Inventors
M. K. (pessoa física)
N. N. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
08/30/1983
RPI 671
#13.1
06/07/1983
RPI 659
#9.1
02/08/1983
RPI 642
#7.1
01/12/1982
RPI 586
#21.1
07/13/1993
RPI 1180
From the same holder
Same category
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