Publicação do pedido de patente
#3.1
10/17/1989
RPI 991
The letters patent expired on 08/26/2008: 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: 10/17/1989. We update with every new RPI gazette, published weekly.
Applicants
Usinas Siderúrgicas de Minas Gerais S/A - Usiminas
MG, BR
Inventors
A. L. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#3.1
10/17/1989
RPI 991
#2.1
06/21/1988
RPI 922
#21.1
Patente extinta em 25/08/2005
08/26/2008
RPI 1964
Referência: RPI 1603 de 25.09.2001 - código 21.1
10/16/2001
RPI 1606
#21.1
Patente extinta em 11/03/98 conforme disposto no artigo 24 da Lei 5772/71 (CPI).
09/25/2001
RPI 1603
#16.1
08/25/1998
RPI 1444
#9.1
10/14/1997
RPI 1402
#6.1
02/04/1997
RPI 1366
#6.1
03/26/1996
RPI 1321
#4.1
04/23/1991
RPI 1064
From the same holder
Same category
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