Carta-patente expirada
#21.1
Patente extinta em 06/02/2005
05/11/2010
RPI 2053
Application data
Number
PI9000506Type
Filing
Publication
The letters patent expired on 05/11/2010: 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: 05/11/2010. We update with every new RPI gazette, published weekly.
Applicants
Alcan International Limited
CA
Inventors
D. L. (pessoa física)
CA
J. M. (pessoa física)
CA
R. H. (pessoa física)
CA
IPC Classification
Priority claims
US
07/307.318 · 02/06/1989
US
07/448.548 · 12/11/1989
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 06/02/2005
05/11/2010
RPI 2053
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01/15/1991
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