Concessão da patente
#16.1
11/30/1982
RPI 632
The letters patent expired on 08/19/2008: 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: 11/30/1982. We update with every new RPI gazette, published weekly.
Applicants
GEORGETOWN STEEL CORP
Inventors
C. M. (pessoa física)
D. W. (pessoa física)
H. R. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
11/30/1982
RPI 632
#13.1
09/08/1982
RPI 620
05/18/1982
RPI 604
11/24/1981
RPI 579
#6.1
10/13/1981
RPI 573
#21.1
Patente extinta em 26/08/92
08/19/2008
RPI 1963
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.