20.4
07/04/1989
RPI 976
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: 07/04/1989. We update with every new RPI gazette, published weekly.
Applicants
Metalacre Comércio e Representações Ltda
SP, BR
Inventors
J. H. (pessoa física)
BR
L. C. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
07/04/1989
RPI 976
06/06/1989
RPI 972
11/10/1987
RPI 890
#16.1
12/30/1986
RPI 845
#13.1
09/23/1986
RPI 831
#9.1
05/27/1986
RPI 814
#4.1
05/28/1985
RPI 762
#3.2
02/20/1985
RPI 748
#2.1
07/24/1984
RPI 718
#21.1
10/04/1994
RPI 1244
From the same holder
Same category
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