16.3
04/17/1984
RPI 704
The letters patent expired on 09/12/1995: 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: 04/17/1984. We update with every new RPI gazette, published weekly.
Applicants
Chemische Werke Huls Ag.
DE
C. A. (pessoa física)
DE
Inventors
F. R. (pessoa física)
P. H. (pessoa física)
S. H. (pessoa física)
Publications in the Brazilian Industrial Property Gazette (RPI).
04/17/1984
RPI 704
#16.1
01/31/1984
RPI 693
#13.1
11/08/1983
RPI 681
#9.1
07/12/1983
RPI 664
11/23/1982
RPI 631
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: C09J 5/00; C09J 3/16.
03/27/2018
RPI 2464
#21.1
09/12/1995
RPI 1293
From the same holder
Same category
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