Publicação do pedido de patente
#3.1
04/12/1988
RPI 912
Application data
Number
PI8704242Type
Filing
Publication
The letters patent expired on 07/29/2008: 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: 04/12/1988. We update with every new RPI gazette, published weekly.
Applicants
Phillips Petroleum Company
US
Inventors
M. B. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
#3.1
04/12/1988
RPI 912
#2.1
11/17/1987
RPI 891
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: C08K 3/36; C08K 1/26; C08L 3/04; C08L 5/00; C08L 57/00; C08J 3/06.
03/27/2018
RPI 2464
#21.1
Patente extinta em 17/08/2002
07/29/2008
RPI 1960
#16.1
05/31/1994
RPI 1226
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10/26/1993
RPI 1195
#6.1
01/14/1992
RPI 1102
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02/01/1990
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