Publicação do pedido de patente
#3.1
05/30/1989
RPI 971
Application data
Number
PI8805248Type
Filing
Publication
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: 05/30/1989. We update with every new RPI gazette, published weekly.
Applicants
Exxon Chemical Patents, Inc
US
Inventors
G. H. (pessoa física)
GB
J. M. (pessoa física)
GB
M. V. (pessoa física)
FR
Publications in the Brazilian Industrial Property Gazette (RPI).
#3.1
05/30/1989
RPI 971
#2.1
02/21/1989
RPI 957
#21.1
Patente extinta em 12/10/2008
12/18/2012
RPI 2189
#16.1
10/28/1997
RPI 1404
#13.1
09/23/1997
RPI 1399
#9.1
03/04/1997
RPI 1370
#6.1
07/16/1996
RPI 1337
#6.1
06/27/1995
RPI 1282
#4.1
04/30/1991
RPI 1065
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Same category
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