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Official data from INPI

PROCESSO PARA A OBTENCAO DE RESOLUCAO APERFEICOADA DE UMA IMAGEM DE TONIFICADOR MAGNETICO

ConcedidaInvention Patent

Application data

Number

PI8303712

Type

Invention Patent

Filing

07/15/1982

Publication

02/21/1984

Progress at the INPI

  1. Filing07/15/82
  2. Publication02/21/84
  3. Examination05/22/84
  4. Allowance03/26/85
  5. Grant08/27/85
  6. Terminated10/02/90

The patent was granted on 08/27/1985 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 08/27/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DU PONT [US]

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Inventors

J. B. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/27/1985

RPI 775

Notificação para pagamento de retribuição

#13.1

07/09/1985

RPI 768

Deferimento

#9.1

03/26/1985

RPI 753

Solicitação de exame técnico

#4.1

05/22/1984

RPI 709

Publicação do pedido de patente

#3.1

02/21/1984

RPI 696

Pedido de patente depositado

#2.1

09/20/1983

RPI 674

Anuidade - prazo legal encerrado

#18.2

10/02/1990

RPI 1035

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