Concessão da patente
#16.1
08/30/1983
RPI 671
The letters patent expired on 07/20/1993: 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: 08/30/1983. We update with every new RPI gazette, published weekly.
Applicants
RUHRCHEMIE AG
Inventors
D. H. (pessoa física)
L. B. (pessoa física)
S. H. (pessoa física)
S. V. (pessoa física)
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
08/30/1983
RPI 671
#13.1
06/28/1983
RPI 662
#9.1
03/08/1983
RPI 646
#6.1
07/13/1982
RPI 612
#21.1
07/20/1993
RPI 1181
From the same holder
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.