Concessão da patente
#16.1
08/25/1987
RPI 879
The letters patent expired on 09/12/1995: 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: 08/25/1987. We update with every new RPI gazette, published weekly.
Applicants
Minnesota Mining and Manufacturing Company
US
Inventors
N. R. (pessoa física)
R. H. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
08/25/1987
RPI 879
#13.1
05/05/1987
RPI 863
#9.1
12/16/1986
RPI 843
#6.1
10/09/1984
RPI 729
#6.1
01/17/1984
RPI 691
#4.1
02/01/1983
RPI 641
#21.1
09/12/1995
RPI 1293
From the same holder
Same category
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