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
C. J. (pessoa física)
Inventors
C. J. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
08/16/1988
RPI 930
#16.1
11/29/1983
RPI 684
#13.1
08/09/1983
RPI 668
03/22/1983
RPI 648
#12.1
08/17/1982
RPI 617
#9.1
04/20/1982
RPI 600
03/09/1982
RPI 594
#15.11
Procedimento automático de reclassificação. A classificação IPC anterior era B01D 29/32.
03/27/2018
RPI 2464
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.