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Official data from INPI

PROCESSO PARA FAZER UM TUBO DE IMERSÃO REVESTIDO DE REFRATÁRIO, TUBO DE IMERSÃO E PROCESSO DE SOPROMENTO EM METAIS FUNDIDOS.

Em AnáliseInvention Patent

Application data

Number

PI7905182

Type

Invention Patent

Filing

08/13/1979

Publication

-

Progress at the INPI

  1. Filing08/13/79
  2. Publication
  3. Examination04/27/82
  4. Allowance10/25/83
  5. Grant04/24/84
  6. Terminated06/14/88

The patent was granted on 04/24/1984 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: 06/14/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Aikon Co, Ltd.

Inventors

H. Y. (pessoa física)

Technical data

Priority claims

JP

104745/78 · 08/28/1978

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

06/14/1988

RPI 921

Republicação - classificação IPC

#15.11

05/02/1984

RPI 706

Concessão da patente

#16.1

04/24/1984

RPI 705

Notificação para pagamento de retribuição

#13.1

02/07/1984

RPI 694

Republicação - classificação IPC

#15.11

02/07/1984

RPI 694

Deferimento

#9.1

10/25/1983

RPI 679

6.2

03/01/1983

RPI 645

Solicitação de exame técnico

#4.1

04/27/1982

RPI 601

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