102
04/18/1989
RPI 965
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.
Applicants
Alcoa Alumínio S/A
MG, BR
Companhia Química Industrial de Laminados
RJ, BR
Inventors
A. N. (pessoa física)
BR
N. S. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
04/18/1989
RPI 965
#12.3
01/10/1989
RPI 951
09/27/1988
RPI 936
#15.11
08/18/1987
RPI 878
#6.1
07/14/1987
RPI 873
#4.1
08/05/1986
RPI 824
#3.1
12/03/1985
RPI 789
#2.1
07/03/1984
RPI 715
#21.1
06/13/1995
RPI 1280
#16.1
11/29/1994
RPI 1252
#13.1
09/27/1994
RPI 1243
#9.1
05/17/1994
RPI 1224
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Same category
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