07/30/1985
RPI 771
Concessão da patente
16.1
Invention PatentPI8100555
Explo-Brasil S.A
The letters patent expired on 03/19/1996: 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: 07/30/1985. We update with every new RPI gazette, published weekly.
Publications in the Brazilian Industrial Property Gazette (RPI).
07/30/1985
RPI 771
16.1
05/28/1985
RPI 762
13.1
02/12/1985
RPI 747
9.1
08/07/1984
RPI 720
6.1
02/28/1984
RPI 697
6.1
12/14/1982
RPI 634
4.1
09/28/1982
RPI 623
3.1
07/25/2017
RPI 2429
15.11
As classificações anteriores eram: D06L 1/14; D06L 3/08
03/19/1996
RPI 1320
21.1
08/04/1992
RPI 1131
08/04/1992
RPI 1131
From the same holder