Publicação do pedido de patente
#3.1
12/15/1987
RPI 895
Application data
Number
PI8700940Type
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: 12/15/1987. We update with every new RPI gazette, published weekly.
Applicants
The Dow Chemical Company
US
Inventors
S. B. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
#3.1
12/15/1987
RPI 895
#2.1
06/23/1987
RPI 870
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Procedimento automático de reclassificação. As classificações IPC anteriores eram: C07C 161/00; C08J 7/12; C01B 3/20.
03/27/2018
RPI 2464
#21.1
Patente extinta em 26/02/2002
07/29/2008
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02/04/1997
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