Concessão da patente
#16.1
08/25/1987
RPI 879
The patent was granted on 08/25/1987 and later terminated for failure to pay the annuities. The technology is in the public domain 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
R. R. (pessoa física)
S. R. (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
09/03/1985
RPI 776
#6.1
01/31/1984
RPI 693
#4.1
03/08/1983
RPI 646
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: C08J 5/18; G03C 1/68.
03/20/2018
RPI 2463
#18.2
11/03/1993
RPI 1196
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