Pedido de licença voluntária
#17.1
10/03/1989
RPI 989
The letters patent expired on 10/04/1994: 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: 10/03/1989. We update with every new RPI gazette, published weekly.
Applicants
ALCAN BRASIL [BR]
Inventors
M. R. (pessoa física)
S. D. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#17.1
10/03/1989
RPI 989
#16.1
07/25/1989
RPI 979
#13.1
01/17/1989
RPI 952
10/25/1988
RPI 940
06/07/1988
RPI 920
#12.1
02/09/1988
RPI 903
#9.1
09/01/1987
RPI 880
#5.1
12/30/1986
RPI 845
#4.1
08/05/1986
RPI 824
#3.1
10/08/1985
RPI 781
#2.1
05/15/1984
RPI 708
#21.1
10/04/1994
RPI 1244
05/29/1990
RPI 1020
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