Concessão da patente
#16.1
03/29/1988
RPI 910
The letters patent expired on 10/04/1994: 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: 03/29/1988. We update with every new RPI gazette, published weekly.
Applicants
Abril S/A Cultural e Industrial
Inventors
R. L. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
03/29/1988
RPI 910
#13.1
09/29/1987
RPI 884
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06/09/1987
RPI 868
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09/23/1986
RPI 831
#4.1
11/12/1985
RPI 786
#3.2
07/02/1985
RPI 767
#2.1
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RPI 713
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10/04/1994
RPI 1244
#20.1
06/04/1991
RPI 1070
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05/28/1991
RPI 1069
05/21/1991
RPI 1068
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