Concessão da patente
#16.1
01/31/1984
RPI 693
The letters patent expired on 11/30/1993: 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: 01/31/1984. We update with every new RPI gazette, published weekly.
Applicants
P. C. (pessoa física)
US
Inventors
B. R. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
01/31/1984
RPI 693
#13.1
11/22/1983
RPI 683
#9.1
08/02/1983
RPI 667
#6.1
10/26/1982
RPI 627
10/20/1981
RPI 574
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: C07C 149/06; C07C 148/00.
03/27/2018
RPI 2464
#21.1
11/30/1993
RPI 1200
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