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Official data from INPI

RESFRIADOR AUXILIAR PARA TRANSFORMADORES.

Em AnáliseInvention Patent

Application data

Number

PI7904421

Type

Invention Patent

Filing

07/10/1979

Publication

-

Progress at the INPI

  1. Filing07/10/79
  2. Publication
  3. Examination06/08/82
  4. Allowance12/27/83
  5. Grant11/27/84
  6. Terminated08/25/87

The patent was granted on 11/27/1984 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: 08/25/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Elco Componentes Elétricos Ltda

Inventors

B. C. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

08/25/1987

RPI 879

14.7

05/07/1985

RPI 759

14.10

04/09/1985

RPI 755

Concessão da patente

#16.1

11/27/1984

RPI 736

14.7

08/14/1984

RPI 721

14.4

08/07/1984

RPI 720

14.4

07/10/1984

RPI 716

Notificação para pagamento de retribuição

#13.1

04/24/1984

RPI 705

Deferimento

#9.1

12/27/1983

RPI 688

8.1

08/09/1983

RPI 668

Exigência - art. 36 da LPI

#6.1

01/11/1983

RPI 638

Solicitação de exame técnico

#4.1

06/08/1982

RPI 607

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