Solicitação de exame técnico
#4.1
06/23/1987
RPI 870
Application data
Number
PI8604812Type
Filing
Publication
The letters patent expired on 07/22/2008: 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: 06/23/1987. We update with every new RPI gazette, published weekly.
Applicants
Telecomunicações do Rio de Janeiro S/A - Telerj
RJ, BR
Inventors
A. L. (pessoa física)
BR
E. V. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
06/23/1987
RPI 870
#3.2
03/17/1987
RPI 856
#2.1
03/04/1987
RPI 854
#21.1
Patente extinta em 03/10/2001
07/22/2008
RPI 1959
#16.1
10/27/1992
RPI 1143
#13.1
04/07/1992
RPI 1114
#15.11
11/19/1991
RPI 1094
#9.1
11/19/1991
RPI 1094
#6.1
05/28/1991
RPI 1069
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Same category
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