Solicitação de exame técnico
#4.1
09/29/1987
RPI 884
Application data
Number
PI8701997Type
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: 09/29/1987. We update with every new RPI gazette, published weekly.
Applicants
T. N. (pessoa física)
SP, BR
Inventors
T. N. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
09/29/1987
RPI 884
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08/11/1987
RPI 877
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Patente extinta em 01/04/2002
07/29/2008
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06/25/1991
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01/08/1991
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01/23/1990
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