Concessão da patente
#16.1
12/26/1984
RPI 740
The letters patent expired on 12/07/1993: 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: 12/26/1984. We update with every new RPI gazette, published weekly.
Applicants
Telecomunicações Brasileiras S/A - Telebrás
SP, BR
Inventors
E. B. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
12/26/1984
RPI 740
#13.1
10/02/1984
RPI 728
#9.1
06/12/1984
RPI 712
#15.11
04/24/1984
RPI 705
#15.11
02/07/1984
RPI 694
#6.1
11/16/1983
RPI 682
11/01/1983
RPI 680
#21.1
12/07/1993
RPI 1201
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