Carta-patente expirada
#21.1
Patente extinta em 20/02/2000
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
Instituto de Pesquisas Tecnológicas do Estado de São Paulo
SP, BR
Instituto de Pesquisas Tecnológicas do Estado de São Paulo S/A - IPT
SP, BR
Inventors
E. P. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 20/02/2000
07/01/2008
RPI 1956
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