18.8
12/08/1987
RPI 894
The letters patent expired on 07/27/1993: 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: 12/08/1987. We update with every new RPI gazette, published weekly.
Applicants
S. J. (pessoa física)
Inventors
S. J. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
12/08/1987
RPI 894
#18.2
08/25/1987
RPI 879
#16.1
08/31/1982
RPI 619
#21.1
07/27/1993
RPI 1182
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.