Concessão da patente
#16.1
07/26/1988
RPI 927
The letters patent expired on 05/16/1995: 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: 07/26/1988. We update with every new RPI gazette, published weekly.
Applicants
H. I. (pessoa física)
US
Inventors
D. D. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
07/26/1988
RPI 927
#9.1
02/09/1988
RPI 903
#7.1
12/04/1984
RPI 737
#4.1
10/18/1983
RPI 678
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: C08L 79/00; D21D 3/00; D21H 3/48.
03/20/2018
RPI 2463
#21.1
05/16/1995
RPI 1276
From the same holder
Same category
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