Solicitação de exame técnico
#4.1
10/14/1986
RPI 834
Application data
Number
PI8503774Type
Filing
Publication
The letters patent expired on 07/15/2008: 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: 10/14/1986. We update with every new RPI gazette, published weekly.
Applicants
A. C. (pessoa física)
US
S. C. (pessoa física)
US
Inventors
R. P. (pessoa física)
US
W. R. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
10/14/1986
RPI 834
#3.1
05/20/1986
RPI 813
#2.1
10/15/1985
RPI 782
#21.1
Patente extinta em 09/08/2000
07/15/2008
RPI 1958
#20.1
06/15/1993
RPI 1176
06/08/1993
RPI 1175
#16.1
10/27/1992
RPI 1143
#13.1
07/07/1992
RPI 1127
#9.1
02/18/1992
RPI 1107
#15.11
11/05/1991
RPI 1092
#6.1
06/11/1991
RPI 1071
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.