Concessão da patente
#16.1
06/02/1987
RPI 867
Application data
Number
PI8104818Type
Filing
Publication
The letters patent expired on 11/12/1996: 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: 06/02/1987. We update with every new RPI gazette, published weekly.
Applicants
Telecomunicações Brasileiras S/A - Telebrás
SP, BR
Inventors
A. F. (pessoa física)
M. A. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
06/02/1987
RPI 867
#13.1
12/02/1986
RPI 841
#9.1
08/12/1986
RPI 825
#6.1
10/29/1985
RPI 784
#4.1
05/07/1985
RPI 759
#3.1
03/01/1983
RPI 645
#21.1
11/12/1996
RPI 1354
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