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Official data from INPI

MÉTODO E DISPOSITIVO PARA EXTRAÇÃO DE MOLDES DE COBRE, DE LINGOTEIRAS, NO LINGOTAMENTO CONTÍNUO

Em AnáliseInvention Patent

Application data

Number

PI8605835

Type

Invention Patent

Filing

11/28/1986

Publication

09/01/1987

Progress at the INPI

  1. Filing11/28/86
  2. Publication09/01/87
  3. Examination11/17/87
  4. Allowance11/23/93
  5. Grant08/30/94
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 11/17/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Mannesmann S/A

MG, BR

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Inventors

H. F. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

11/17/1987

RPI 891

Publicação antecipada

#3.2

09/01/1987

RPI 880

Pedido de patente depositado

#2.1

08/11/1987

RPI 877

Carta-patente expirada

#21.1

Patente extinta em 28/11/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

08/30/1994

RPI 1239

Notificação para pagamento de retribuição

#13.1

04/12/1994

RPI 1219

Deferimento

#9.1

11/23/1993

RPI 1199

Exigência - art. 36 da LPI

#6.1

05/25/1993

RPI 1173

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