Carta-patente expirada
#21.1
Patente extinta em 16/11/2009
12/26/2012
RPI 2190
Application data
Number
PI8907741Type
Filing
Publication
PCT
US1989004745 The letters patent expired on 12/26/2012: 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: 12/26/2012. We update with every new RPI gazette, published weekly.
Applicants
Advanced Elastomer Systems, L.P
US
Exxon Chemical Patents, Inc
US
Inventors
D. H. (pessoa física)
US
L. D. (pessoa física)
BE
R. P. (pessoa física)
US
S. C. (pessoa física)
BE
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 16/11/2009
12/26/2012
RPI 2190
#16.1
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04/06/1999
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08/11/1998
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07/18/1995
RPI 1285
04/20/1993
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12/17/1991
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08/27/1991
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