6.2
05/30/1989
RPI 971
Application data
Number
PI8504374Type
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: 05/30/1989. We update with every new RPI gazette, published weekly.
Applicants
Union Switch & Signal, Inc.
US
Inventors
R. C. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
05/30/1989
RPI 971
#4.1
06/21/1988
RPI 922
08/19/1986
RPI 826
#3.1
07/08/1986
RPI 820
#2.1
11/19/1985
RPI 787
#21.1
Patente extinta em 10/09/2000
07/15/2008
RPI 1958
#16.1
11/24/1992
RPI 1147
#15.11
09/22/1992
RPI 1138
#13.1
06/30/1992
RPI 1126
#9.1
01/14/1992
RPI 1102
#15.11
11/05/1991
RPI 1092
#6.1
07/16/1991
RPI 1076
06/05/1990
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