Retificação
#15.6
11/17/1987
RPI 891
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: 11/17/1987. We update with every new RPI gazette, published weekly.
Applicants
Equitel S.A. Equipamentos e Sistemas de Telecomunicações
PR, BR
Inventors
D. I. (pessoa física)
BR
R. W. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#15.6
11/17/1987
RPI 891
#15.1
09/08/1987
RPI 881
#6.1
07/28/1987
RPI 875
#4.1
08/05/1986
RPI 824
#3.1
12/11/1984
RPI 738
#2.1
06/21/1983
RPI 661
#21.1
12/07/1993
RPI 1201
#16.1
06/25/1991
RPI 1073
#13.1
01/22/1991
RPI 1051
#9.1
10/09/1990
RPI 1036
#6.1
05/22/1990
RPI 1019
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