Carta-patente expirada
#21.1
Patente extinta em 23/08/2005
06/01/2010
RPI 2056
Application data
Number
PI9004256Type
Filing
Publication
The letters patent expired on 06/01/2010: 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: 06/01/2010. We update with every new RPI gazette, published weekly.
Applicants
E. C. (pessoa física)
US
Inventors
D. M. (pessoa física)
US
G. S. (pessoa física)
US
T. R. (pessoa física)
US
IPC Classification
Priority claims
US
402,396 · 09/05/1989
US
402,409 · 09/05/1989
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 23/08/2005
06/01/2010
RPI 2056
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02/07/1995
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12/14/1993
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09/03/1991
RPI 1083
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03/05/1991
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