Solicitação de exame técnico
#4.1
10/04/1988
RPI 937
The letters patent expired on 09/18/2001: 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: 10/04/1988. We update with every new RPI gazette, published weekly.
Applicants
B. F. (pessoa física)
RS, BR
Inventors
B. F. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
10/04/1988
RPI 937
#3.2
07/19/1988
RPI 926
#2.1
02/17/1988
RPI 904
#21.1
Patente extinta em 28/10/97 conforme o disposto no artigo 24 da Lei 5772/71 (CPI).
09/18/2001
RPI 1602
#16.1
03/31/1992
RPI 1113
#13.1
10/22/1991
RPI 1090
#9.1
06/25/1991
RPI 1073
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Same category
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