Concessão da patente
#16.1
08/31/1982
RPI 619
The letters patent expired on 08/10/1993: 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: 08/31/1982. We update with every new RPI gazette, published weekly.
Applicants
S. D. (pessoa física)
Inventors
E. B. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
08/31/1982
RPI 619
#13.1
05/04/1982
RPI 602
#11.2
01/05/1982
RPI 585
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: C07F 9/50; B01J 31/24; C07B 1/00.
03/27/2018
RPI 2464
#21.1
08/10/1993
RPI 1184
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.