03/29/1988
RPI 910
Pedido de licença compulsória
20.1
Invention PatentPI8008052
Eveready do Brasil Industria e Comercio Ltda.+1
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: 03/29/1988. We update with every new RPI gazette, published weekly.
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
03/29/1988
RPI 910
20.1
12/30/1986
RPI 845
02/04/1986
RPI 798
16.1
11/26/1985
RPI 788
13.1
07/30/1985
RPI 771
9.1
01/15/1985
RPI 743
6.1
07/24/1984
RPI 718
4.1
08/03/1982
RPI 615
3.1
10/05/2021
RPI 2648
15.11
Reclassificação automática - A classificação anterior era: F21V 7/22, G02B 5/12
03/19/1996
RPI 1320
21.1