Carta-patente expirada
#21.1
Patente extinta em 26/04/2005
05/18/2010
RPI 2054
Application data
Number
PI9001942Type
Filing
Publication
The letters patent expired on 05/18/2010: 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: 05/18/2010. We update with every new RPI gazette, published weekly.
Applicants
Petróleo Brasileiro S/A - Petrobrás
RJ, BR
Inventors
C. A. (pessoa física)
BR
M. A. (pessoa física)
BR
R. R. (pessoa física)
BR
S. R. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 26/04/2005
05/18/2010
RPI 2054
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12/27/1994
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08/16/1994
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04/19/1994
RPI 1220
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04/28/1992
RPI 1117
#3.1
11/12/1991
RPI 1093
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10/30/1990
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