Concessão da patente
#16.1
10/26/1982
RPI 627
The letters patent expired on 07/27/1993: 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: 10/26/1982. We update with every new RPI gazette, published weekly.
Applicants
STAUFFER CHEMICAL CO
Inventors
C. R. (pessoa física)
K. W. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
10/26/1982
RPI 627
#13.1
06/22/1982
RPI 609
#9.1
03/02/1982
RPI 593
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: C07C 17/04; C07C 19/02.
03/27/2018
RPI 2464
#21.1
07/27/1993
RPI 1182
From the same holder
Same category
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