Solicitação de exame técnico
#4.1
06/14/1988
RPI 921
Application data
Number
PI8603776Type
Filing
Publication
The letters patent expired on 07/22/2008: 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: 06/14/1988. We update with every new RPI gazette, published weekly.
Applicants
Roto-Master, Inc
US
Inventors
A. J. (pessoa física)
US
J. M. (pessoa física)
US
R. M. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
06/14/1988
RPI 921
#3.1
11/17/1987
RPI 891
#2.1
02/24/1987
RPI 853
#21.1
Patente extinta em 07/08/2001
07/22/2008
RPI 1959
#16.1
03/26/1991
RPI 1060
#13.1
11/20/1990
RPI 1042
#9.1
08/07/1990
RPI 1027
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.