Concessão da patente
#16.1
06/28/1988
RPI 923
Application data
Number
PI8404968Type
Filing
Publication
The letters patent expired on 07/08/2008: 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: 06/28/1988. We update with every new RPI gazette, published weekly.
Applicants
Telecomunicações Do Rio De Janeiro S/A - Telerj
RJ, BR
Inventors
A. D. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
06/28/1988
RPI 923
#13.1
01/26/1988
RPI 901
#9.1
09/08/1987
RPI 881
#4.1
07/09/1985
RPI 768
#3.2
02/26/1985
RPI 749
#2.1
12/11/1984
RPI 738
#21.1
Patente extinta em 02/10/99
07/08/2008
RPI 1957
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