Carta-patente expirada
#21.1
Patente extinta em 29/12/2008
12/18/2012
RPI 2189
Application data
Number
PI8807385Type
Filing
Publication
PCT
US1988003425 The letters patent expired on 12/18/2012: 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: 12/18/2012. We update with every new RPI gazette, published weekly.
Applicants
Columbian Chemicals Company
US
Inventors
A. B. (pessoa física)
US
W. J. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 29/12/2008
12/18/2012
RPI 2189
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12/29/1998
RPI 1460
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09/15/1998
RPI 1447
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04/07/1998
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06/19/1990
RPI 1023
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