Concessão da patente
#16.1
05/25/1982
RPI 605
The letters patent expired on 08/25/1992: 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: 05/25/1982. We update with every new RPI gazette, published weekly.
Applicants
American Cyanamid Company
US
Inventors
E. B. (pessoa física)
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
05/25/1982
RPI 605
#13.1
12/22/1981
RPI 583
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: A01N 9/20; C07C 87/60; C07C 87/62.
03/27/2018
RPI 2464
#21.1
08/25/1992
RPI 1134
From the same holder
Same category
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