Solicitação de exame técnico
#4.1
12/20/1988
RPI 948
Application data
Number
PI8701346Type
Filing
Publication
The letters patent expired on 07/29/2008: 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: 12/20/1988. We update with every new RPI gazette, published weekly.
Applicants
Telecomunicações do Paraná S/A Telepar
PR, BR
Inventors
A. B. (pessoa física)
BR
A. R. (pessoa física)
BR
C. O. (pessoa física)
BR
L. S. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
12/20/1988
RPI 948
#3.1
09/27/1988
RPI 936
#2.1
07/07/1987
RPI 872
#21.1
Patente extinta em 19/03/2002
07/29/2008
RPI 1960
#16.1
08/30/1994
RPI 1239
#13.1
03/22/1994
RPI 1216
#9.1
11/03/1993
RPI 1196
#6.1
04/27/1993
RPI 1169
#7.1
03/03/1992
RPI 1109
From the same holder
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