Pedido de patente depositado
#2.1
04/11/1989
RPI 964
Application data
Number
PI8900976Type
Filing
Publication
The letters patent expired on 12/15/2009: 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: 04/11/1989. We update with every new RPI gazette, published weekly.
Applicants
Companhia Siderúrgica Paulista - COSIPA
SP, BR
Inventors
J. F. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#2.1
04/11/1989
RPI 964
#21.1
Patente extinta em 28/02/2004
12/15/2009
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07/27/1993
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10/22/1991
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