Cessão de direito de exploração
#22.1
08/26/1986
RPI 827
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: 08/26/1986. We update with every new RPI gazette, published weekly.
Applicants
H. I. (pessoa física)
US
Inventors
M. W. (pessoa física)
S. G. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#22.1
08/26/1986
RPI 827
#16.1
07/30/1985
RPI 771
#13.1
06/25/1985
RPI 766
#15.11
04/16/1985
RPI 756
#9.1
03/05/1985
RPI 750
#6.1
06/19/1984
RPI 713
#4.1
10/04/1983
RPI 676
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: C09B 57/00; C09B 62/00; D21H 1/46; D21H 3/80.
03/27/2018
RPI 2464
#21.1
05/16/1995
RPI 1276
From the same holder
Same category
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