Solicitação de exame técnico
#4.1
10/31/1989
RPI 993
Application data
Number
PI8604805Type
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: 10/31/1989. We update with every new RPI gazette, published weekly.
Applicants
W. C. (pessoa física)
US
Inventors
G. T. (pessoa física)
US
J. M. (pessoa física)
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
10/31/1989
RPI 993
#3.1
06/30/1987
RPI 871
#2.1
04/07/1987
RPI 859
#21.1
Patente extinta em 30/09/2001
07/22/2008
RPI 1959
#16.1
04/27/1993
RPI 1169
#13.1
11/10/1992
RPI 1145
#9.1
06/23/1992
RPI 1125
#6.1
12/17/1991
RPI 1098
From the same holder
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.