Concessão da patente
#16.1
09/27/1983
RPI 675
The letters patent expired on 07/20/1993: 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: 09/27/1983. We update with every new RPI gazette, published weekly.
Applicants
MINNESOTA MINING & MFG
Inventors
F. F. (pessoa física)
K. G. (pessoa física)
N. R. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
09/27/1983
RPI 675
#13.1
06/21/1983
RPI 661
#9.1
03/01/1983
RPI 645
#6.1
06/15/1982
RPI 608
#21.1
07/20/1993
RPI 1181
From the same holder
Same category
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