11/28/1989
RPI 997
Concessão da patente
16.1
Utility ModelMU6501544
L B Produtos Eletrônicos Ltda
The patent was granted on 11/28/1989 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: 11/28/1989. We update with every new RPI gazette, published weekly.
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
11/28/1989
RPI 997
16.1
08/15/1989
RPI 982
13.1
04/18/1989
RPI 965
9.1
06/07/1988
RPI 920
6.1
08/05/1986
RPI 824
4.1
03/04/1986
RPI 802
3.2
12/31/1985
RPI 793
2.1
05/25/1982
RPI 605
16.1
03/10/1992
RPI 1110
18.2