Concessão da patente
#16.1
06/26/1984
RPI 714
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: 06/26/1984. We update with every new RPI gazette, published weekly.
Applicants
Minnesota Mining and Manufacturing Company
US
Inventors
B. T. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
06/26/1984
RPI 714
#13.1
04/17/1984
RPI 704
#9.1
12/20/1983
RPI 687
#4.1
01/18/1983
RPI 639
#21.1
09/12/1995
RPI 1293
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.