Solicitação de exame técnico
#4.1
10/31/1989
RPI 993
Application data
Number
PI8702975Type
Filing
Publication
The letters patent expired on 07/29/2008: 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
Alpina Equipamentos Industriais Ltda
SP, BR
Inventors
C. W. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
10/31/1989
RPI 993
#3.1
03/07/1989
RPI 959
#2.1
08/18/1987
RPI 878
#21.1
Patente extinta em 12/06/2002
07/29/2008
RPI 1960
#16.1
11/27/1990
RPI 1043
#13.1
08/21/1990
RPI 1029
#9.1
05/15/1990
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