Carta-patente expirada
#21.1
Patente extinta em 22/08/2010
01/02/2013
RPI 2191
Application data
Number
PI8907277Type
Filing
Publication
PCT
US1989005784 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
The Dow Chemical Company
US
Inventors
W. J. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 22/08/2010
01/02/2013
RPI 2191
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07/16/1996
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03/26/1991
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