20.4
07/10/1984
RPI 716
The patent was granted on 01/31/1984 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.
Talk to a specialistLatest action published by the INPI: 07/10/1984. We update with every new RPI gazette, published weekly.
Applicants
DEGUSSA
Inventors
B. H. (pessoa física)
K. A. (pessoa física)
IPC Classification
No IPC classification.
Publications in the Brazilian Industrial Property Gazette (RPI).
07/10/1984
RPI 716
#16.1
01/31/1984
RPI 693
#13.1
11/22/1983
RPI 683
#9.1
08/02/1983
RPI 667
#6.1
02/01/1983
RPI 641
08/10/1982
RPI 616
#4.1
02/09/1982
RPI 590
#18.2
09/25/1990
RPI 1034
From the same holder
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