Concessão da patente
#16.1
06/28/1988
RPI 923
Application data
Number
PI8204630Type
Filing
Publication
The letters patent expired on 07/01/2008: 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: 06/28/1988. We update with every new RPI gazette, published weekly.
Applicants
Telecomunicações Brasileiras S/A - Telebrás
SP, BR
Inventors
C. R. (pessoa física)
BR
F. P. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
06/28/1988
RPI 923
#15.11
05/10/1988
RPI 916
#13.1
03/01/1988
RPI 906
#9.1
11/03/1987
RPI 889
#4.1
07/08/1986
RPI 820
#3.1
03/13/1984
RPI 699
#2.1
09/20/1983
RPI 674
#15.11
12/22/2009
RPI 2033
#21.1
Patente extinta em 05/08/97
07/01/2008
RPI 1956
#15.11
10/01/1991
RPI 1087
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Same category
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