Solicitação de exame técnico
#4.1
05/16/1989
RPI 969
The letters patent expired on 09/25/2001: 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: 05/16/1989. We update with every new RPI gazette, published weekly.
Applicants
Unitec Transmissões, Equipamentos e Sinterização Ltda.
SP, BR
Inventors
J. B. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
05/16/1989
RPI 969
#3.2
10/04/1988
RPI 937
#2.1
09/27/1988
RPI 936
#21.1
Patente extinta em 01/06/98 conforme o disposto no artigo 24 da Lei 5772/71 (CPI).
09/25/2001
RPI 1603
#16.1
03/29/1994
RPI 1217
#13.1
11/16/1993
RPI 1198
#9.1
06/29/1993
RPI 1178
From the same holder
Same category
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