Concessão da patente
#16.1
09/06/1983
RPI 672
The letters patent expired on 07/13/1993: 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: 09/06/1983. We update with every new RPI gazette, published weekly.
Applicants
L. O. (pessoa física)
Inventors
L. O. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
09/06/1983
RPI 672
#13.1
05/24/1983
RPI 657
#9.1
01/04/1983
RPI 637
08/17/1982
RPI 617
#6.1
11/10/1981
RPI 577
#21.1
07/13/1993
RPI 1180
Same category
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