Concessão da patente
#16.1
09/25/1984
RPI 727
The letters patent expired on 09/19/1995: 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: 09/25/1984. We update with every new RPI gazette, published weekly.
Applicants
K. A. (pessoa física)
SE
Inventors
G. L. (pessoa física)
J. F. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
09/25/1984
RPI 727
#9.1
03/27/1984
RPI 701
#6.1
11/08/1983
RPI 681
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: B04C 3/06; B01D 23/16; B01D 25/36.
03/27/2018
RPI 2464
#21.1
09/19/1995
RPI 1294
From the same holder
Same category
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