Pedido de patente depositado
#2.1
02/28/1989
RPI 958
Application data
Number
PI8900134Type
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: 02/28/1989. We update with every new RPI gazette, published weekly.
Applicants
Usinas Siderúrgicas de Minas Gerais S/A - Usiminas
MG, BR
Inventors
G. A. (pessoa física)
BR
M. P. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#2.1
02/28/1989
RPI 958
#21.1
Patente extinta em 12/01/2004
12/15/2009
RPI 2032
#16.1
03/25/1997
RPI 1373
#9.1
06/11/1996
RPI 1332
#4.1
09/17/1991
RPI 1085
#3.1
08/14/1990
RPI 1028
From the same holder
Same category
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