Concessão da patente
#16.1
11/30/1982
RPI 632
The letters patent expired on 11/30/1993: 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: 11/30/1982. We update with every new RPI gazette, published weekly.
Applicants
IBM
Inventors
M. C. (pessoa física)
M. W. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
11/30/1982
RPI 632
#13.1
09/21/1982
RPI 622
#9.1
06/01/1982
RPI 606
#6.1
10/27/1981
RPI 575
#21.1
11/30/1993
RPI 1200
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.