04/18/1989
RPI 965
Utility ModelMU6400608
Alcoa Alumínio S/A+1
The letters patent expired on 06/13/1995: 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: 04/18/1989. We update with every new RPI gazette, published weekly.
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
04/18/1989
RPI 965
01/10/1989
RPI 951
12.3
09/27/1988
RPI 936
08/18/1987
RPI 878
15.11
07/14/1987
RPI 873
6.1
08/05/1986
RPI 824
4.1
12/03/1985
RPI 789
3.1
07/03/1984
RPI 715
2.1
06/13/1995
RPI 1280
21.1
11/29/1994
RPI 1252
16.1
09/27/1994
RPI 1243
13.1
05/17/1994
RPI 1224
9.1
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