Concessão da patente
#16.1
11/29/1988
RPI 945
The letters patent expired on 12/07/1993: 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: 11/29/1988. We update with every new RPI gazette, published weekly.
Applicants
Usinas Siderúrgicas de Minas Gerais S/A - USIMINAS
MG, BR
Inventors
L. E. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
11/29/1988
RPI 945
#13.1
06/07/1988
RPI 920
#9.1
02/09/1988
RPI 903
12/08/1987
RPI 894
#15.3
09/22/1987
RPI 883
#4.1
08/05/1986
RPI 824
#3.1
07/31/1984
RPI 719
#2.1
02/16/1983
RPI 643
#21.1
12/07/1993
RPI 1201
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.