Concessão da patente
#16.1
12/29/1987
RPI 897
The letters patent expired on 06/21/1994: 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: 12/29/1987. We update with every new RPI gazette, published weekly.
Applicants
MINNESOTA MINING & MFG
Inventors
B. R. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
12/29/1987
RPI 897
#13.1
11/10/1987
RPI 890
#9.1
07/14/1987
RPI 873
#7.1
10/11/1983
RPI 677
06/22/1982
RPI 609
#4.1
12/15/1981
RPI 582
#21.1
06/21/1994
RPI 1229
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Same category
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