Pedido de patente depositado
#2.1
05/02/1989
RPI 967
Application data
Number
PI8806568Type
Filing
Publication
The letters patent expired on 09/02/2008: 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: 05/02/1989. We update with every new RPI gazette, published weekly.
Applicants
Telecomunicações do Paraná S/A Telepar
PR, BR
Inventors
D. V. (pessoa física)
BR
V. A. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#2.1
05/02/1989
RPI 967
#15.11
Reclassificação automática - A classificação anterior era: H04N 15/00
10/05/2021
RPI 2648
#21.1
Patente extinta em 09/12/2003
09/02/2008
RPI 1965
#16.1
08/29/1995
RPI 1291
#13.1
04/04/1995
RPI 1270
#9.1
11/29/1994
RPI 1252
#6.1
05/10/1994
RPI 1223
#6.1
11/16/1993
RPI 1198
#4.1
03/24/1992
RPI 1112
#3.1
07/31/1990
RPI 1026
From the same holder
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.