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Official data from INPI

PROCESSO DE CODIFICAÇÃO NA FORMA DIGITAL DE PULSOS DE AMPLITUDE MODULADA E CONVERSOR ANALÓGICO PARA DIGITAL.

ConcedidaInvention Patent

Application data

Number

PI7905685

Type

Invention Patent

Filing

09/04/1979

Publication

-

Progress at the INPI

  1. Filing09/04/79
  2. Publication
  3. Examination
  4. Allowance08/09/83
  5. Grant02/28/84
  6. Terminated01/28/92

The patent was granted on 02/28/1984 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: 02/28/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Cselt Centro Studi e Laboratori Telecomunicazioni S.p.a.

IT

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Inventors

B. G. (pessoa física)

F. B. (pessoa física)

L. P. (pessoa física)

Technical data

IPC Classification

Priority claims

IT

69106-A/79 · 09/13/1978

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/28/1984

RPI 697

Notificação para pagamento de retribuição

#13.1

11/29/1983

RPI 684

Deferimento

#9.1

08/09/1983

RPI 668

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. A classificação IPC anterior era H03K 13/01.

03/27/2018

RPI 2464

Anuidade - prazo legal encerrado

#18.2

01/28/1992

RPI 1104

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