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Official data from INPI

SISTEMA DE VEDACAO DE GAS EM PLACAS DE REFRIGERACAO DE FORNOS SIDERURGICOS

Em AnáliseInvention Patent

Application data

Number

PI7807449

Type

Invention Patent

Filing

11/13/1978

Publication

-

Progress at the INPI

  1. Filing11/13/78
  2. Publication
  3. Examination
  4. Allowance01/24/84
  5. Grant07/31/84
  6. Terminated09/13/88

The patent was granted on 07/31/1984 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: 09/13/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M. S. (pessoa física)

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Inventors

N. H. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

09/13/1988

RPI 934

Concessão da patente

#16.1

07/31/1984

RPI 719

Notificação para pagamento de retribuição

#13.1

05/02/1984

RPI 706

Republicação - classificação IPC

#15.11

04/17/1984

RPI 704

Republicação - classificação IPC

#15.11

02/07/1984

RPI 694

Deferimento

#9.1

01/24/1984

RPI 692

6.2

01/26/1982

RPI 588

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