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Official data from INPI

FECHADURA ELETRÔNICA RECODIFICÁVEL, MEMBRO DE CHAVE, ELEMENTO RECODIFICADOR E PROCESSO PARA RECODIFICAÇÃO DE UMA FECHADURA ELETRÔNICA.

ConcedidaInvention Patent

Application data

Number

PI8304761

Type

Invention Patent

Filing

08/31/1983

Publication

04/10/1984

Progress at the INPI

  1. Filing08/31/83
  2. Publication04/10/84
  3. Examination06/26/84
  4. Allowance07/30/85
  5. Grant02/04/86
  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: 02/04/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Elkem, A/S

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Inventors

E. B. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Priority claims

NO

822966 · 09/02/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/04/1986

RPI 798

Notificação para pagamento de retribuição

#13.1

11/26/1985

RPI 788

Deferimento

#9.1

07/30/1985

RPI 771

14.1

09/25/1984

RPI 727

Solicitação de exame técnico

#4.1

06/26/1984

RPI 714

Publicação do pedido de patente

#3.1

04/10/1984

RPI 703

Pedido de patente depositado

#2.1

11/01/1983

RPI 680

Carta-patente expirada

#21.1

Patente extinta em 31/08/98

07/01/2008

RPI 1956

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