20.4
11/10/1987
RPI 890
The patent was granted on 12/30/1986 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: 11/10/1987. We update with every new RPI gazette, published weekly.
Applicants
DEGUSSA
Inventors
K. H. (pessoa física)
K. G. (pessoa física)
S. H. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
11/10/1987
RPI 890
#16.1
12/30/1986
RPI 845
#13.1
10/14/1986
RPI 834
#9.1
06/17/1986
RPI 817
#6.1
09/17/1985
RPI 778
#6.1
03/20/1984
RPI 700
#6.1
11/01/1983
RPI 680
#6.1
03/01/1983
RPI 645
#6.1
05/04/1982
RPI 602
#18.2
01/28/1992
RPI 1104
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.