Carta-patente expirada
#21.1
Patente extinta em 12/09/2004
12/22/2009
RPI 2033
Application data
Number
PI8904583Type
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
Petróleo Brasileiro S/A - Petrobrás
RJ, BR
Pontifícia Universidade Católica do Rio de Janeiro - PUC/RJ
RJ, BR
Inventors
J. W. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 12/09/2004
12/22/2009
RPI 2033
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