Solicitação de exame técnico
#4.1
12/08/1987
RPI 894
Application data
Number
PI8500229Type
Filing
Publication
The letters patent expired on 07/15/2008: 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: 12/08/1987. We update with every new RPI gazette, published weekly.
Applicants
A. D. (pessoa física)
SP, BR
Empresa Brasileira de Telecomunicações S/A - EMBRATEL
Inventors
A. D. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
12/08/1987
RPI 894
#3.1
08/04/1987
RPI 876
05/12/1987
RPI 864
#2.1
04/16/1985
RPI 756
#21.1
Patente extinta em 18/01/2000
07/15/2008
RPI 1958
#16.1
08/25/1992
RPI 1134
#13.1
03/03/1992
RPI 1109
#9.1
10/22/1991
RPI 1090
#6.1
04/23/1991
RPI 1064
Same category
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