Concessão da patente
#16.1
09/26/1989
RPI 988
The letters patent expired on 05/16/1995: 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: 09/26/1989. We update with every new RPI gazette, published weekly.
Applicants
Telecomunicações Brasileiras S/A - Telebrás
SP, BR
Inventors
L. K. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
09/26/1989
RPI 988
#13.1
05/23/1989
RPI 970
03/14/1989
RPI 960
#12.2
03/29/1988
RPI 910
#9.2
12/01/1987
RPI 893
#6.1
05/14/1985
RPI 760
#6.1
01/24/1984
RPI 692
#4.1
05/25/1982
RPI 605
#4.2
12/29/1981
RPI 584
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: G11C 9/04; G06F 11/10.
03/27/2018
RPI 2464
#21.1
05/16/1995
RPI 1276
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