Pedido de patente depositado
#2.1
09/12/1989
RPI 986
Application data
Number
PI8803269Type
Filing
Publication
The letters patent expired on 09/02/2008: 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: 09/12/1989. We update with every new RPI gazette, published weekly.
Applicants
Aço Minas Gerais S/A - Açominas
MG, BR
Gerdau Açominas S/A
MG, BR
Inventors
A. C. (pessoa física)
BR
L. V. (pessoa física)
BR
R. F. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#2.1
09/12/1989
RPI 986
#21.1
Patente extinta em 28/06/2003
09/02/2008
RPI 1965
#25.4
Alterado de: Aço Minas Gerais S/A - Açominas
11/08/2005
RPI 1818
#16.1
08/30/1994
RPI 1239
#13.1
03/29/1994
RPI 1217
#13.1
03/22/1994
RPI 1216
#9.1
11/16/1993
RPI 1198
#4.1
04/14/1992
RPI 1115
#3.1
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.