Carta-patente expirada
#21.1
Patente extinta em 01/02/2003
09/02/2008
RPI 1965
Application data
Number
PI8807347Type
Filing
Publication
PCT
US1988000286 The letters patent expired on 09/02/2008: 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: 09/02/2008. We update with every new RPI gazette, published weekly.
Applicants
Exxon Chemical Patents Inc
US
Inventors
A. C. (pessoa física)
CA
J. B. (pessoa física)
US
W. D. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 01/02/2003
09/02/2008
RPI 1965
#16.1
12/26/1995
RPI 1308
#13.1
10/17/1995
RPI 1298
#9.1
06/06/1995
RPI 1279
#6.1
09/27/1994
RPI 1243
#4.1
06/05/1990
RPI 1021
#1.3
03/13/1990
RPI 1009
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