Pedido de licença compulsória
#20.1
11/29/1983
RPI 684
The letters patent expired on 08/03/1993: 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: 11/29/1983. We update with every new RPI gazette, published weekly.
Applicants
DEGUSSA
Inventors
K. D. (pessoa física)
P. E. (pessoa física)
R. W. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#20.1
11/29/1983
RPI 684
#16.1
04/26/1983
RPI 653
12/14/1982
RPI 634
#13.1
12/08/1981
RPI 581
#21.1
08/03/1993
RPI 1183
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.