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Official data from INPI

Circuito linearizador

ConcedidaInvention Patent

Application data

Number

PI7801288

Type

Invention Patent

Filing

03/02/1978

Publication

10/31/1978

Progress at the INPI

  1. Filing03/02/78
  2. Publication10/31/78
  3. Examination11/11/80
  4. Allowance12/22/81
  5. Grant08/31/82
  6. Terminated09/18/90

The patent was granted on 08/31/1982 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: 08/31/1982. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

T. E. (pessoa física)

SE

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Inventors

T. B. (pessoa física)

SE

Technical data

IPC Classification

Priority claims

SE

77.02344-8 · 03/03/1977

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/31/1982

RPI 619

Notificação para pagamento de retribuição

#13.1

04/27/1982

RPI 601

Deferimento

#9.1

12/22/1981

RPI 583

Solicitação de exame técnico

#4.1

11/11/1980

RPI 525

Publicação do pedido de patente

#3.1

10/31/1978

RPI 419

Anuidade - prazo legal encerrado

#18.2

09/18/1990

RPI 1033

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