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Official data from INPI

APERFEIÇOAMENTO EM COPIADOR DE CHAVES

ConcedidaInvention Patent

Application data

Number

PI8404531

Type

Invention Patent

Filing

09/06/1984

Publication

01/22/1985

Progress at the INPI

  1. Filing09/06/84
  2. Publication01/22/85
  3. Examination04/09/85
  4. Allowance01/21/87
  5. Grant08/25/87
  6. Terminated03/03/92

The patent was granted on 08/25/1987 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 08/25/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. S. (pessoa física)

SP, BR

Inventors

A. S. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/25/1987

RPI 879

Notificação para pagamento de retribuição

#13.1

06/09/1987

RPI 868

Deferimento

#9.1

01/21/1987

RPI 848

Solicitação de exame técnico

#4.1

04/09/1985

RPI 755

Publicação antecipada

#3.2

01/22/1985

RPI 744

Pedido de patente depositado

#2.1

11/13/1984

RPI 734

Anuidade - prazo legal encerrado

#18.2

03/03/1992

RPI 1109

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