20.4
11/01/1983
RPI 680
The patent is in force and subject to a compulsory licence request: third parties have asked for authorisation to exploit the technology.
Protection valid until:07/22/1997
Latest action published by the INPI: 11/01/1983. We update with every new RPI gazette, published weekly.
Applicants
DEGUSSA
Inventors
K. H. (pessoa física)
L. W. (pessoa física)
S. W. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
11/01/1983
RPI 680
#16.1
12/28/1982
RPI 636
#13.1
10/05/1982
RPI 624
#9.1
06/22/1982
RPI 609
10/13/1981
RPI 573
From the same holder
Same category
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