Carta-patente expirada
#21.1
Patente extinta em 26/10/2005
06/08/2010
RPI 2057
Application data
Number
PI9005442Type
Filing
Publication
The letters patent expired on 06/08/2010: 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: 06/08/2010. We update with every new RPI gazette, published weekly.
Applicants
Townsend Engineering Company
US
Inventors
R. T. (pessoa física)
US
IPC Classification
Priority claims
US
426.668 · 10/26/1989
US
447.156 · 12/07/1989
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 26/10/2005
06/08/2010
RPI 2057
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