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Official data from INPI

DISPOSITIVO PARA CORTAR UM REVESTIMÇENTO SOBRE UM ELETRODO DE CARBONO COZIDO

Em AnáliseInvention Patent

Application data

Number

PI8602335

Type

Invention Patent

Filing

05/22/1986

Publication

01/21/1987

Progress at the INPI

  1. Filing05/22/86
  2. Publication01/21/87
  3. Examination04/28/87
  4. Allowance04/14/92
  5. Grant11/24/92
  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.

Talk to a specialist

Latest action published by the INPI: 04/28/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Elken a/s

NO

Inventors

O. V. (pessoa física)

NO

Technical data

IPC Classification

Priority claims

NO

852.184 · 05/30/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

04/28/1987

RPI 862

Publicação do pedido de patente

#3.1

01/21/1987

RPI 848

Pedido de patente depositado

#2.1

11/18/1986

RPI 839

Carta-patente expirada

#21.1

Patente extinta em 22/05/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

11/24/1992

RPI 1147

Notificação para pagamento de retribuição

#13.1

09/15/1992

RPI 1137

Republicação - classificação IPC

#15.11

07/28/1992

RPI 1130

Deferimento

#9.1

04/14/1992

RPI 1115

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