Solicitação de exame técnico
#4.1
07/28/1987
RPI 875
The letters patent expired on 07/15/2008: 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: 07/28/1987. We update with every new RPI gazette, published weekly.
Applicants
E. A. (pessoa física)
SE
Inventors
No inventors listed.
IPC Classification
No IPC classification.
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
07/28/1987
RPI 875
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01/06/1987
RPI 846
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: D21H 3/34; D21H 3/68.
03/27/2018
RPI 2464
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Patente extinta em 21/10/2000
07/15/2008
RPI 1958
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02/04/1992
RPI 1105
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10/22/1991
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