Concessão da patente
#16.1
03/27/1984
RPI 701
The letters patent expired on 07/27/1993: 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: 03/27/1984. We update with every new RPI gazette, published weekly.
Applicants
DEGUSSA
Inventors
A. K. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
03/27/1984
RPI 701
#13.1
12/13/1983
RPI 686
#9.1
08/23/1983
RPI 670
#6.1
02/01/1983
RPI 641
#6.1
12/22/1981
RPI 583
#21.1
07/27/1993
RPI 1182
From the same holder
Same category
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