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Official data from INPI

MÉTODO E APARELHO PARA PREPARAÇÃO DE FORNADA NO PROCESSO DE FUSÃO

ConcedidaInvention Patent

Application data

Number

PI8503219

Type

Invention Patent

Filing

06/26/1985

Publication

03/25/1986

Progress at the INPI

  1. Filing06/26/85
  2. Publication03/25/86
  3. Examination08/05/86
  4. Allowance11/01/88
  5. Grant09/26/89
  6. Expired07/15/08

The letters patent expired on 07/15/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Outokumpu Oy., empresa finlandesa

FI

Inventors

L. M. (pessoa física)

FI

M. H. (pessoa física)

FI

Technical data

IPC Classification

Priority claims

FI

842577 · 06/27/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/26/1989

RPI 988

Notificação para pagamento de retribuição

#13.1

02/21/1989

RPI 957

Deferimento

#9.1

11/01/1988

RPI 941

Solicitação de exame técnico

#4.1

08/05/1986

RPI 824

Publicação do pedido de patente

#3.1

03/25/1986

RPI 805

Pedido de patente depositado

#2.1

09/17/1985

RPI 778

Carta-patente expirada

#21.1

Patente extinta em 26/06/2000

07/15/2008

RPI 1958

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