Pedido de patente depositado
#2.1
11/07/1989
RPI 994
Application data
Number
PI8806176Type
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: 11/07/1989. We update with every new RPI gazette, published weekly.
Applicants
Usinas Siderúrgicas de Minas Gerais S/A - Usiminas
MG, BR
Inventors
A. A. (pessoa física)
BR
G. O. (pessoa física)
BR
L. A. (pessoa física)
BR
O. F. (pessoa física)
BR
P. C. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#2.1
11/07/1989
RPI 994
#21.1
Patente extinta em 24/11/2003
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