Concessão da patente
#16.1
01/31/1984
RPI 693
The letters patent expired on 06/21/1994: 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: 01/31/1984. We update with every new RPI gazette, published weekly.
Applicants
U. C. (pessoa física)
US
Inventors
B. W. (pessoa física)
US
F. K. (pessoa física)
US
G. G. (pessoa física)
US
IPC Classification
Priority claims
US
012.712 · 02/16/1979
US
969.275 · 12/14/1978
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
02/08/1983
RPI 642
06/22/1982
RPI 609
#4.1
01/05/1982
RPI 585
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: C08F 4/66; C08F 10/02.
03/20/2018
RPI 2463
#21.1
06/21/1994
RPI 1229
10/08/1991
RPI 1088
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.