Carta-patente expirada
#21.1
08/16/1988
RPI 930
The letters patent expired on 08/16/1988: 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: 08/16/1988. We update with every new RPI gazette, published weekly.
Applicants
D. C. (pessoa física)
D. H. (pessoa física)
R. J. (pessoa física)
Inventors
N. C. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
08/16/1988
RPI 930
07/29/1986
RPI 823
#16.1
03/27/1984
RPI 701
#13.1
11/08/1983
RPI 681
#9.1
06/21/1983
RPI 661
04/06/1982
RPI 598
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.