Solicitação de exame técnico
#4.1
10/10/1989
RPI 990
Application data
Number
PI8606937Type
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: 10/10/1989. We update with every new RPI gazette, published weekly.
Applicants
Z. A. (pessoa física)
DE
Inventors
W. B. (pessoa física)
DE
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
10/10/1989
RPI 990
#1.3
11/03/1987
RPI 889
#21.1
Patente extinta em 08/10/2001
07/22/2008
RPI 1959
#16.1
04/30/1991
RPI 1065
#13.1
02/13/1991
RPI 1054
#9.1
10/30/1990
RPI 1039
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