Official data from INPI

LIGA À BASE DE NÍQUEL CONTENDO CROMO, SILÍCIO E COBRE RESISTENTE À CORROSÃO

Arquivada/ExtintaInvention Patent

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Application data

Number

PI9004846

Type

Invention Patent

Filing

09/27/1990

Publication

09/10/1991

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Progress at the INPI

Filing09/27/90
Publication09/10/91
Examination11/17/92
Allowance12/29/98
Grant06/29/99
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.

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Latest action published by the INPI: 05/21/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Haynes International Inc.

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Inventors

N. S. (pessoa física)

Technical data

IPC Classification

C22C 19/05

Priority claims

437;707 · 11/17/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 27/09/2010

05/21/2013

RPI 2211

Concessão da patente

#16.1

06/29/1999

RPI 1486

Deferimento

#9.1

12/29/1998

RPI 1460

Exigência - art. 36 da LPI

#6.1

04/22/1998

RPI 1426

6.2

03/12/1996

RPI 1319

Solicitação de exame técnico

#4.1

11/17/1992

RPI 1146

Publicação do pedido de patente

#3.1

09/10/1991

RPI 1084

Pedido de patente depositado

#2.1

04/02/1991

RPI 1061

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