Carta-patente expirada
#21.1
Patente extinta em 27/11/2009
01/02/2013
RPI 2191
Application data
Number
PI8905962Type
Filing
Publication
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
Exxon Chemical Patents, Inc
US
Inventors
F. C. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 27/11/2009
01/02/2013
RPI 2191
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11/25/1997
RPI 1408
#13.1
09/23/1997
RPI 1399
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03/04/1997
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07/18/1995
RPI 1285
#4.1
06/23/1992
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06/19/1990
RPI 1023
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03/27/1990
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