Carta-patente expirada
#21.1
Patente extinta em 22/12/2004
12/29/2009
RPI 2034
Application data
Number
PI8907863Type
Filing
Publication
PCT
US1989005869 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
U. C. (pessoa física)
US
Inventors
A. W. (pessoa física)
US
H. R. (pessoa física)
US
R. R. (pessoa física)
US
W. V. (pessoa física)
US
IPC Classification
Priority claims
US
290.531 · 12/27/1988
US
455.105 · 12/22/1989
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 22/12/2004
12/29/2009
RPI 2034
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