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Official data from INPI

APARELHO PARA PRE-AQUECER UMA SUCATA DE ACO

ConcedidaInvention Patent
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Application data

Number

PI8105509

Type

Invention Patent

Filing

08/29/1980

Publication

05/11/1982
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Progress at the INPI

  1. Filing08/29/80
  2. Publication05/11/82
  3. Examination07/13/82
  4. Allowance01/03/84
  5. Grant06/26/84
  6. Terminated06/27/95

The patent was granted on 06/26/1984 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: 06/26/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

N. K. (pessoa física)

TOSHIN STEEL CO

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Inventors

H. W. (pessoa física)

M. I. (pessoa física)

S. I. (pessoa física)

T. D. (pessoa física)

T. M. (pessoa física)

Pessoa física

Technical data

IPC Classification

C21C 5/00F27D 13/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/26/1984

RPI 714

Notificação para pagamento de retribuição

#13.1

04/24/1984

RPI 705

Deferimento

#9.1

01/03/1984

RPI 689

Solicitação de exame técnico

#4.1

07/13/1982

RPI 612

Publicação do pedido de patente

#3.1

05/11/1982

RPI 603

Pedido de patente depositado

#2.1

10/06/1981

RPI 572

Anuidade - prazo legal encerrado

#18.2

06/27/1995

RPI 1282

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