Concessão da patente
#16.1
06/26/1984
RPI 714
The letters patent expired on 05/02/1995: 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: 06/26/1984. We update with every new RPI gazette, published weekly.
Applicants
Telecomunicações Brasileiras S/A-Telebrás
SP, BR
Inventors
G. B. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
06/26/1984
RPI 714
#4.2
03/20/1984
RPI 700
#4.2
07/12/1983
RPI 664
#13.1
02/16/1983
RPI 643
#9.1
10/13/1982
RPI 625
#6.1
04/20/1982
RPI 600
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: G02B 5/172; B29D 11/00; H04B 9/00.
03/27/2018
RPI 2464
#21.1
05/02/1995
RPI 1274
From the same holder
Same category
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