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Official data from INPI

PROCESSO PARA SOBREAQUECIMENTO DO FLUXO DE AR DA SECAGEM DESCENDENTE EM FORNOS DE PELOTIZAÇÃO DE GRELHA MÓVEL

ConcedidaInvention Patent

Application data

Number

PI7908113

Type

Invention Patent

Filing

12/12/1979

Publication

-

Progress at the INPI

  1. Filing12/12/79
  2. Publication
  3. Examination11/16/83
  4. Allowance05/15/84
  5. Grant02/26/85
  6. Terminated01/28/92

The patent was granted on 02/26/1985 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: 02/26/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. D. (pessoa física)

MG, BR

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Inventors

A. M. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/26/1985

RPI 749

Notificação para pagamento de retribuição

#13.1

09/04/1984

RPI 724

Deferimento

#9.1

05/15/1984

RPI 708

Solicitação de exame técnico

#4.1

11/16/1983

RPI 682

Solicitação de exame não realizada

#4.2

06/28/1983

RPI 662

Anuidade - prazo legal encerrado

#18.2

01/28/1992

RPI 1104

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