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Official data from INPI

APERFEICOAMENTO EM APARELHO DE AQUECIMENTO CONTINUO PARA TAMPAS METALICAS

Em AnáliseInvention Patent

Application data

Number

PI7903246

Type

Invention Patent

Filing

07/19/1978

Publication

-

Progress at the INPI

  1. Filing07/19/78
  2. Publication
  3. Examination12/01/81
  4. Allowance07/27/82
  5. Grant03/29/83
  6. Terminated10/03/89

The patent was granted on 03/29/1983 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: 10/03/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

TOYO SEIKAN KAISHA LTD

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Inventors

I. K. (pessoa física)

O. H. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

10/03/1989

RPI 989

Concessão da patente

#16.1

03/29/1983

RPI 649

Notificação para pagamento de retribuição

#13.1

12/14/1982

RPI 634

Deferimento

#9.1

07/27/1982

RPI 614

Solicitação de exame técnico

#4.1

12/01/1981

RPI 580

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