20.4
09/23/1986
RPI 831
The letters patent expired on 12/07/1993: 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: 09/23/1986. We update with every new RPI gazette, published weekly.
Applicants
GOULD SOPRANO SA
Inventors
M. W. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
09/23/1986
RPI 831
#16.1
12/31/1985
RPI 793
11/12/1985
RPI 786
#11.4
06/11/1985
RPI 764
#13.1
10/23/1984
RPI 731
#9.1
07/03/1984
RPI 715
03/20/1984
RPI 700
#6.1
10/25/1983
RPI 679
#6.1
05/10/1983
RPI 655
08/17/1982
RPI 617
#6.1
08/03/1982
RPI 615
#21.1
12/07/1993
RPI 1201
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.