Pedido de patente depositado
#2.1
11/28/1989
RPI 997
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Official data from INPI
LIGAS DE ALTA RESISTÊNCIA À BASE DE MAGNÉSIO
Prazo de SigiloInvention Patent
Application data
Number
PI8904537Type
Invention Patent
Filing
09/05/1989
Publication
04/24/1990
Progress at the INPI
- Filing09/05/89
- Publication04/24/90
- Examination11/27/90
- Allowance12/31/96
- Grant08/26/97
- Expired05/21/13
The letters patent expired on 05/21/2013: 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: 11/28/1989. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
T. M. (pessoa física)
JP
Y. C. (pessoa física)
JP
Y. K. (pessoa física)
JP
Inventors
A. I. (pessoa física)
JP
K. O. (pessoa física)
JP
T. M. (pessoa física)
JP
Technical data
IPC Classification
Priority claims
JP
1-177974 · 07/12/1989
JP
1-53885 · 03/08/1989
JP
63-220427 · 09/05/1988
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Carta-patente expirada
#21.1
Patente extinta em 05/09/2009
05/21/2013
RPI 2211
Concessão da patente
#16.1
08/26/1997
RPI 1395
Deferimento
#9.1
12/31/1996
RPI 1361
14.4
11/07/1995
RPI 1301
Solicitação de exame técnico
#4.1
11/27/1990
RPI 1043
Publicação do pedido de patente
#3.1
04/24/1990
RPI 1015
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