Carta-patente expirada
#21.1
Patente extinta em 13/03/2010
05/21/2013
RPI 2211
Application data
Number
PI9001182Type
Filing
Publication
The letters patent expired on 05/21/2013: 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: 05/21/2013. We update with every new RPI gazette, published weekly.
Applicants
Petróleo Brasileiro S/A - Petrobrás
RJ, BR
Inventors
A. L. (pessoa física)
BR
E. F. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 13/03/2010
05/21/2013
RPI 2211
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09/30/1997
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03/26/1996
RPI 1321
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12/17/1991
RPI 1098
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10/15/1991
RPI 1089
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10/30/1990
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