Solicitação de exame técnico
#4.1
10/11/1988
RPI 938
Application data
Number
PI8705185Type
Filing
Publication
The letters patent expired on 07/29/2008: 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: 10/11/1988. We update with every new RPI gazette, published weekly.
Applicants
Cia. Siderúrgica Belgo Mineira
MG, BR
Inventors
W. G. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
10/11/1988
RPI 938
#3.2
05/17/1988
RPI 917
#2.1
02/23/1988
RPI 905
#21.1
Patente extinta em 21/09/2002
07/29/2008
RPI 1960
#16.1
07/30/1996
RPI 1339
#13.1
01/02/1996
RPI 1309
#9.1
08/08/1995
RPI 1288
#6.1
03/01/1995
RPI 1265
#6.1
02/22/1994
RPI 1212
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.