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Official data from INPI

CONJUNTO DE ALIMENTAÇÃO DE ELETRODOS.

ConcedidaInvention Patent

Application data

Number

PI8300560

Type

Invention Patent

Filing

02/04/1983

Publication

11/08/1983

Progress at the INPI

  1. Filing02/04/83
  2. Publication11/08/83
  3. Examination01/24/84
  4. Allowance07/02/85
  5. Grant12/31/85
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 12/31/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Elkem A/S

NO

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Inventors

E. K. (pessoa física)

Technical data

IPC Classification

Priority claims

NO

820417 · 02/12/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/31/1985

RPI 793

Notificação para pagamento de retribuição

#13.1

10/22/1985

RPI 783

Deferimento

#9.1

07/02/1985

RPI 767

Exigência - art. 36 da LPI

#6.1

01/15/1985

RPI 743

Solicitação de exame técnico

#4.1

01/24/1984

RPI 692

Publicação do pedido de patente

#3.1

11/08/1983

RPI 681

Pedido de patente depositado

#2.1

03/22/1983

RPI 648

Carta-patente expirada

#21.1

Patente extinta em 04/02/98

07/01/2008

RPI 1956

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