Concessão da patente
#16.1
02/04/1986
RPI 798
The letters patent expired on 07/26/1994: 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: 02/04/1986. We update with every new RPI gazette, published weekly.
Applicants
ROHM & HAAS
Inventors
J. W. (pessoa física)
R. Y. (pessoa física)
S. C. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
02/04/1986
RPI 798
#13.1
11/12/1985
RPI 786
#9.1
07/09/1985
RPI 768
#6.1
02/28/1984
RPI 697
#6.1
09/06/1983
RPI 672
#4.1
11/03/1982
RPI 628
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: C07C 79/46; A01N 33/20; A01N 37/12.
03/27/2018
RPI 2464
#21.1
07/26/1994
RPI 1234
From the same holder
Same category
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