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Official data from INPI

APERFEICOAMENTO EM MAQUINA PARA LIMPAR AS SUPERFICIES DE VEDACAO DE UMA PORTA OU BATENTE DE PORTA DE FORNO

Em AnáliseInvention Patent

Application data

Number

PI7708315

Type

Invention Patent

Filing

12/16/1976

Publication

-

Progress at the INPI

  1. Filing12/16/76
  2. Publication
  3. Examination
  4. Allowance04/27/82
  5. Grant11/30/82
  6. Terminated12/15/87

The patent was granted on 11/30/1982 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: 12/15/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BRITISH STEEL CORP

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Inventors

L. B. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

12/15/1987

RPI 895

Concessão da patente

#16.1

11/30/1982

RPI 632

Notificação para pagamento de retribuição

#13.1

08/31/1982

RPI 619

Deferimento

#9.1

04/27/1982

RPI 601

6.2

10/06/1981

RPI 572

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