Carta-patente expirada
#21.1
Patente extinta em 25/09/2004
12/22/2009
RPI 2033
Application data
Number
PI8904846Type
Filing
Publication
The letters patent expired on 12/22/2009: 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: 12/22/2009. We update with every new RPI gazette, published weekly.
Applicants
T. C. (pessoa física)
US
Inventors
P. W. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 25/09/2004
12/22/2009
RPI 2033
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05/31/1994
RPI 1226
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11/23/1993
RPI 1199
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05/26/1992
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05/08/1990
RPI 1017
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03/27/1990
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