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Official data from INPI

PROCESSO PARA PRODUZIR AÇO SILÍCIO ORIENTADO.

Em AnáliseInvention Patent

Application data

Number

PI8107880

Type

Invention Patent

Filing

12/04/1981

Publication

09/08/1982

Progress at the INPI

  1. Filing12/04/81
  2. Publication09/08/82
  3. Examination12/14/82
  4. Allowance12/17/85
  5. Grant06/24/86
  6. In force12/04/01

The patent is in force and subject to a compulsory licence request: third parties have asked for authorisation to exploit the technology.

Protection valid until:12/04/2001

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Latest action published by the INPI: 09/06/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ARMCO INC.

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Inventors

D. A. (pessoa física)

L. F. (pessoa física)

Technical data

IPC Classification

Priority claims

US

214,441 · 12/08/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

09/06/1988

RPI 933

Concessão da patente

#16.1

06/24/1986

RPI 818

Notificação para pagamento de retribuição

#13.1

04/22/1986

RPI 809

Deferimento

#9.1

12/17/1985

RPI 791

Exigência - art. 36 da LPI

#6.1

11/06/1984

RPI 733

Solicitação de exame técnico

#4.1

12/14/1982

RPI 634

Publicação do pedido de patente

#3.1

09/08/1982

RPI 620

Pedido de patente depositado

#2.1

01/26/1982

RPI 588

Pedido de licença compulsória

#20.1

11/03/1992

RPI 1144

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