Carta-patente expirada
#21.1
Patente extinta em 28/09/2004
12/22/2009
RPI 2033
Application data
Number
PI8904911Type
Filing
Publication
The letters patent expired on 12/22/2009: 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: 12/22/2009. We update with every new RPI gazette, published weekly.
Applicants
Companhia Brasileira de Projetos Industriais-COBRAPI
RJ, BR
Companhia Siderúrgica Nacional - CSN
RJ, BR
Inventors
A. F. (pessoa física)
BR
I. B. (pessoa física)
BR
R. J. (pessoa física)
BR
V. C. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 28/09/2004
12/22/2009
RPI 2033
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