Carta-patente expirada
#21.1
Patente extinta em 25/08/2004
12/29/2009
RPI 2034
Application data
Number
PI8907658Type
Filing
Publication
PCT
US1989003690 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
D. W. (pessoa física)
US
Inventors
D. W. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 25/08/2004
12/29/2009
RPI 2034
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07/30/1991
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