Carta-patente expirada
#21.1
Patente extinta em 06/02/2011
05/21/2013
RPI 2211
Application data
Number
PI9004749Type
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
A. C. (pessoa física)
US
B. C. (pessoa física)
US
BP Corporation North America INC.
US
Inventors
G. E. (pessoa física)
US
J. H. (pessoa física)
US
L. C. (pessoa física)
US
P. J. (pessoa física)
US
W. S. (pessoa física)
US
IPC Classification
Priority claims
US
411,908 · 09/25/1989
US
556,353 · 07/20/1990
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 06/02/2011
05/21/2013
RPI 2211
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