20.4
10/16/1984
RPI 730
The letters patent expired on 10/26/1993: 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: 10/16/1984. We update with every new RPI gazette, published weekly.
Applicants
S. D. (pessoa física)
Inventors
E. B. (pessoa física)
Publications in the Brazilian Industrial Property Gazette (RPI).
10/16/1984
RPI 730
10/02/1984
RPI 728
#16.1
10/20/1981
RPI 574
#15.11
Procedimento automático de reclassificação. A classificação IPC anterior era A01N 9/36.
03/20/2018
RPI 2463
#21.1
10/26/1993
RPI 1195
From the same holder
Same category
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