13.2
07/27/1982
RPI 614
The letters patent expired on 08/19/2008: 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: 07/27/1982. We update with every new RPI gazette, published weekly.
Applicants
H. A. (pessoa física)
Inventors
H. A. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
07/27/1982
RPI 614
#16.1
07/27/1982
RPI 614
#6.1
11/10/1981
RPI 577
#21.1
Patente extinta em 30/06/92
08/19/2008
RPI 1963
Same category
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