10/31/1989
RPI 993
Deferimento
9.1
Utility ModelMU6601756
Truffi S/A Indústria e Comércio
The letters patent expired on 07/01/2008: 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: 10/31/1989. We update with every new RPI gazette, published weekly.
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
10/31/1989
RPI 993
9.1
07/12/1988
RPI 925
4.1
05/10/1988
RPI 916
3.1
03/31/1987
RPI 858
2.1
07/01/2008
RPI 1956
21.1
Patente extinta em 25/09/1996
08/28/1990
RPI 1030
16.1
03/06/1990
RPI 1008
13.1