09/26/1989
RPI 988
Concessão da patente
16.1
Invention PatentPI8303790
CEDM Editora e Comércio de Materiais Eletrônicos Ltda.
The patent was granted on 09/26/1989 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.
Talk to a specialistLatest action published by the INPI: 09/26/1989. We update with every new RPI gazette, published weekly.
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
09/26/1989
RPI 988
16.1
05/30/1989
RPI 971
13.1
01/17/1989
RPI 952
9.1
08/02/1988
RPI 928
15.11
03/01/1988
RPI 906
6.1
07/09/1985
RPI 768
4.1
02/26/1985
RPI 749
3.1
09/20/1983
RPI 674
2.1
02/18/1992
RPI 1107
18.2