Solicitação de exame técnico
#4.1
07/11/1989
RPI 977
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: 07/11/1989. We update with every new RPI gazette, published weekly.
Applicants
L. B. (pessoa física)
SP, BR
Inventors
L. B. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
07/11/1989
RPI 977
#3.1
01/31/1989
RPI 954
#2.1
10/06/1987
RPI 885
#21.1
Patente extinta em 09/07/97 conforme disposto no artigo 24 da Lei 5772/71 (CPI).
09/18/2001
RPI 1602
05/24/1994
RPI 1225
#16.1
02/16/1994
RPI 1211
#13.1
09/21/1993
RPI 1190
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05/11/1993
RPI 1171
04/06/1993
RPI 1166
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09/22/1992
RPI 1138
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RPI 1105
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07/30/1991
RPI 1078
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01/22/1991
RPI 1051
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