Solicitação de exame técnico
#4.1
09/19/1989
RPI 987
The letters patent expired on 09/25/2001: 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: 09/19/1989. We update with every new RPI gazette, published weekly.
Applicants
C. K. (pessoa física)
PR, BR
Inventors
C. K. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
09/19/1989
RPI 987
#3.2
06/13/1989
RPI 973
#2.1
05/16/1989
RPI 969
#21.1
Patente extinta em 08/07/98 conforme o disposto no artigo 24 da Lei 5772/71 (CPI).
09/25/2001
RPI 1603
#16.1
11/24/1992
RPI 1147
#13.1
07/28/1992
RPI 1130
#9.1
03/03/1992
RPI 1109
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.