Carta-patente expirada
#21.1
Patente extinta em 22/08/2010
01/02/2013
RPI 2191
Application data
Number
PI9006987Type
Filing
Publication
PCT
US1990000067 The letters patent expired on 01/02/2013: 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: 01/02/2013. We update with every new RPI gazette, published weekly.
Applicants
H. B. (pessoa física)
US
Inventors
H. B. (pessoa física)
US
IPC Classification
Priority claims
US
07/459,273 · 12/29/1989
US
297,185 · 01/12/1989
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Patente extinta em 22/08/2010
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