Solicitação de exame técnico
#4.1
05/31/1988
RPI 919
Application data
Number
PI8606567Type
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: 05/31/1988. We update with every new RPI gazette, published weekly.
Applicants
American Cast Iron Pipe Company
US
Inventors
T. W. (pessoa física)
US
W. S. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
05/31/1988
RPI 919
#1.3
08/11/1987
RPI 877
#21.1
Patente extinta em 10/03/2001
07/22/2008
RPI 1959
#16.1
04/30/1991
RPI 1065
#13.1
02/05/1991
RPI 1053
#9.1
10/23/1990
RPI 1038
#7.1
05/29/1990
RPI 1020
From the same holder
Same category
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