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Official data from INPI

CAMPAINHA TELEFÔNICA DE TIPO DIGITAL.

Em AnáliseInvention Patent

Application data

Number

PI8100379

Type

Invention Patent

Filing

01/23/1981

Publication

-

Progress at the INPI

  1. Filing01/23/81
  2. Publication
  3. Examination11/24/81
  4. Allowance04/16/85
  5. Grant12/31/85
  6. Terminated11/16/88

The patent was granted on 12/31/1985 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: 11/16/1988. 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

P. F. (pessoa física)

P. G. (pessoa física)

Technical data

IPC Classification

Priority claims

IT

67119-A/80 · 01/29/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

11/16/1988

RPI 943

Concessão da patente

#16.1

12/31/1985

RPI 793

Notificação para pagamento de retribuição

#13.1

08/06/1985

RPI 772

Deferimento

#9.1

04/16/1985

RPI 756

Republicação - classificação IPC

#15.11

11/27/1984

RPI 736

Exigência - art. 36 da LPI

#6.1

05/08/1984

RPI 707

Solicitação de exame técnico

#4.1

11/24/1981

RPI 579

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