Pedido de patente depositado
#2.1
04/11/1989
RPI 964
Application data
Number
PI8806434Type
Filing
Publication
The letters patent expired on 09/02/2008: 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: 04/11/1989. We update with every new RPI gazette, published weekly.
Applicants
W. S. (pessoa física)
CN
Inventors
W. S. (pessoa física)
CN
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#2.1
04/11/1989
RPI 964
#21.1
Patente extinta em 07/12/2003
09/02/2008
RPI 1965
#16.1
05/31/1994
RPI 1226
#9.1
09/21/1993
RPI 1190
#4.1
09/03/1991
RPI 1083
#3.1
07/24/1990
RPI 1025
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Same category
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