Pedido de patente depositado
#2.1
03/07/1989
RPI 959
Application data
Number
PI8805769Type
Filing
Publication
The letters patent expired on 12/18/2012: 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: 03/07/1989. We update with every new RPI gazette, published weekly.
Applicants
Companhia Siderúrgica Paulista - COSIPA
SP, BR
Inventors
E. L. (pessoa física)
BR
F. G. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#2.1
03/07/1989
RPI 959
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: B21B 37/02; B21C 51/00; G01B 11/02.
03/27/2018
RPI 2464
#21.1
Patente extinta em 01/11/2008
12/18/2012
RPI 2189
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10/28/1997
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07/02/1996
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07/16/1991
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