Carta-patente expirada
#21.1
Patente extinta em 30/11/2009
05/21/2013
RPI 2211
Application data
Number
PI8906036Type
Filing
Publication
The letters patent expired on 05/21/2013: 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: 05/21/2013. We update with every new RPI gazette, published weekly.
Applicants
Usinas Siderúrgicas de Minas Gerais S/A - Usiminas (Grupo Siderbrás)
MG, BR
Inventors
J. R. (pessoa física)
BR
N. A. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 30/11/2009
05/21/2013
RPI 2211
#16.1
09/30/1997
RPI 1400
#9.1
03/04/1997
RPI 1370
08/29/1995
RPI 1291
#4.1
04/07/1992
RPI 1114
#3.1
06/04/1991
RPI 1070
#2.1
03/20/1990
RPI 1010
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.