Notificação para pagamento de retribuição
#13.1
11/07/1989
RPI 994
The letters patent expired on 09/19/1995: 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: 11/07/1989. We update with every new RPI gazette, published weekly.
Applicants
Chevron Research Company
US
Inventors
W. G. (pessoa física)
US
IPC Classification
Priority claims
US
163.460 · 06/27/1980
US
65.480 · 08/10/1979
Publications in the Brazilian Industrial Property Gazette (RPI).
#13.1
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RPI 994
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#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: A01N 37/16; C07C 121/60.
03/27/2018
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09/19/1995
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From the same holder
Same category
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