20.4
06/28/1988
RPI 923
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: 06/28/1988. We update with every new RPI gazette, published weekly.
Applicants
PEXTRON IND ELETRONICA LTDA [BR]
Inventors
F. F. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
06/28/1988
RPI 923
#16.1
05/28/1985
RPI 762
#13.1
01/15/1985
RPI 743
#9.1
09/18/1984
RPI 726
#4.1
05/31/1983
RPI 658
#3.1
03/08/1983
RPI 646
#21.1
12/07/1993
RPI 1201
From the same holder
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.