20.4
08/22/1989
RPI 983
The letters patent expired on 11/22/1994: 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: 08/22/1989. 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)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
08/22/1989
RPI 983
08/15/1989
RPI 982
#16.1
09/29/1987
RPI 884
09/08/1987
RPI 881
#13.1
08/11/1987
RPI 877
04/07/1987
RPI 859
#12.2
12/16/1986
RPI 843
#9.2
07/29/1986
RPI 823
#4.1
05/28/1985
RPI 762
#3.2
02/20/1985
RPI 748
#2.1
10/09/1984
RPI 729
#21.1
11/22/1994
RPI 1251
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Same category
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