18.8
08/02/1988
RPI 928
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: 08/02/1988. We update with every new RPI gazette, published weekly.
Applicants
C. G. (pessoa física)
SP, BR
Inventors
E. B. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
08/02/1988
RPI 928
#18.2
06/21/1988
RPI 922
#16.1
10/29/1985
RPI 784
#13.1
07/30/1985
RPI 771
06/11/1985
RPI 764
04/09/1985
RPI 755
#9.1
04/09/1985
RPI 755
#7.1
09/20/1983
RPI 674
#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.