Pedido de patente depositado
#2.1
09/12/1989
RPI 986
Application data
Number
PI8803705Type
Filing
Publication
The letters patent expired on 12/11/2012: 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: 09/12/1989. We update with every new RPI gazette, published weekly.
Applicants
Usinas Siderúrgicas de Minas Gerais S/A - Usiminas
MG, BR
Inventors
P. R. (pessoa física)
BR
R. S. (pessoa física)
BR
Y. S. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#2.1
09/12/1989
RPI 986
#2.1
12/27/1988
RPI 949
#21.1
Patente extinta em 23/02/2009
12/11/2012
RPI 2188
#16.1
02/23/1999
RPI 1468
#15.11
ALTERADA DEC09D 5/08, C09D 3/54, C09D 3/24
12/08/1998
RPI 1457
#9.1
09/15/1998
RPI 1447
#6.1
09/16/1997
RPI 1398
#6.1
10/08/1996
RPI 1349
#6.1
07/26/1994
RPI 1234
#4.1
07/30/1991
RPI 1078
#3.1
03/13/1990
RPI 1009
From the same holder
Same category
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