Carta-patente expirada
#21.1
Patente extinta em 03/04/2001
07/01/2008
RPI 1956
The letters patent expired on 07/01/2008: 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: 07/01/2008. We update with every new RPI gazette, published weekly.
Applicants
Areia e Pedra Guaru Ltda
SP, BR
Inventors
E. B. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 03/04/2001
07/01/2008
RPI 1956
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10/25/1994
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RPI 1229
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03/08/1994
RPI 1214
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10/29/1991
RPI 1091
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08/27/1991
RPI 1082
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