Carta-patente expirada
#21.1
Patente extinta em 06/12/2004
12/29/2009
RPI 2034
Application data
Number
PI8906277Type
Filing
Publication
The letters patent expired on 12/29/2009: 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: 12/29/2009. We update with every new RPI gazette, published weekly.
Applicants
Townsend Engineering Company
US
Inventors
R. T. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 06/12/2004
12/29/2009
RPI 2034
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05/25/1993
RPI 1173
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10/20/1992
RPI 1142
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11/26/1991
RPI 1095
#3.1
09/25/1990
RPI 1034
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03/20/1990
RPI 1010
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