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Official data from INPI

DISPOSITIVO DE AUTENTICACAO PARA LINHA DE COMUNICACOES

ConcedidaInvention Patent

Application data

Number

PI7807461

Type

Invention Patent

Filing

11/17/1977

Publication

-

Progress at the INPI

  1. Filing11/17/77
  2. Publication
  3. Examination
  4. Allowance07/19/83
  5. Grant07/30/85
  6. Terminated01/28/92

The patent was granted on 07/30/1985 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: 07/30/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BURROUGHS CORP

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Inventors

B. V. (pessoa física)

C. C. (pessoa física)

D. T. (pessoa física)

G. H. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/30/1985

RPI 771

Concessão da patente

#16.1

03/27/1984

RPI 701

Notificação para pagamento de retribuição

#13.1

11/16/1983

RPI 682

Republicação - classificação IPC

#15.11

09/06/1983

RPI 672

Deferimento

#9.1

07/19/1983

RPI 665

Anuidade - prazo legal encerrado

#18.2

01/28/1992

RPI 1104

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