20.7
04/14/1987
RPI 860
The letters patent expired on 11/15/1994: 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: 04/14/1987. We update with every new RPI gazette, published weekly.
Applicants
METALURGICA UDINESE LTDA [BR]
Inventors
I. L. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
04/14/1987
RPI 860
03/31/1987
RPI 858
#16.1
10/29/1986
RPI 836
#13.1
07/08/1986
RPI 820
04/22/1986
RPI 809
#12.1
07/23/1985
RPI 770
#9.1
05/07/1985
RPI 759
#6.1
12/26/1984
RPI 740
#5.1
08/21/1984
RPI 722
#4.1
04/10/1984
RPI 703
#3.1
02/14/1984
RPI 695
#2.1
08/24/1982
RPI 618
#21.1
11/15/1994
RPI 1250
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Same category
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