Concessão da patente
#16.1
11/29/1983
RPI 684
The letters patent expired on 12/07/1993: 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: 11/29/1983. We update with every new RPI gazette, published weekly.
Applicants
CARDAL ELETRO METALURG LTD
Inventors
C. J. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
11/29/1983
RPI 684
#13.1
08/02/1983
RPI 667
#9.1
03/29/1983
RPI 649
#4.1
06/01/1982
RPI 606
#21.1
12/07/1993
RPI 1201
Same category
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