Carta-patente expirada
#21.1
Patente extinta em 01/09/2009
12/26/2012
RPI 2190
Application data
Number
PI8904473Type
Filing
Publication
The letters patent expired on 12/26/2012: 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: 12/26/2012. We update with every new RPI gazette, published weekly.
Applicants
Telecomunicações Brasileiras S/A - Telebrás
SP, BR
Inventors
E. M. (pessoa física)
BR
T. T. (pessoa física)
BR
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 01/09/2009
12/26/2012
RPI 2190
#25.1
Transferido de: Telecomunicações Brasileiras S/A - TELEBRÁS
03/16/1999
RPI 1471
#16.1
02/23/1999
RPI 1468
#9.1
08/18/1998
RPI 1443
#4.1
06/08/1993
RPI 1175
#3.1
03/05/1991
RPI 1057
#2.1
10/30/1990
RPI 1039
From the same holder
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.