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Official data from INPI

RETORNO DA SINALIZACAO MULTIFREQUENCIA COMPELIDA AO TERMINAL ORIGINADOR DA CHAMADA TELEFONICA

DeferidaInvention Patent

Application data

Number

PI7907145

Type

Invention Patent

Filing

10/25/1979

Publication

-

Progress at the INPI

Awaiting grant fee payment
  1. Filing10/25/79
  2. Publication
  3. Examination01/10/84
  4. Allowance04/22/87
  5. Grant
  6. In force

The application was allowed by the INPI on 04/22/1987. The grant of the letters patent is being processed.

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Latest action published by the INPI: 12/20/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

N. N. (pessoa física)

Inventors

No inventors listed.

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Retificação

#15.3

12/20/1988

RPI 948

Retificação

#15.6

02/09/1988

RPI 903

Retificação

#15.3

10/06/1987

RPI 885

Deferimento

#9.1

04/22/1987

RPI 861

6.4

05/06/1986

RPI 811

Exigência - art. 36 da LPI

#6.1

03/25/1986

RPI 805

Exigência - art. 36 da LPI

#6.1

03/11/1986

RPI 803

Exigência - art. 36 da LPI

#6.1

05/28/1985

RPI 762

Conhecimento de parecer técnico

#7.1

08/07/1984

RPI 720

Solicitação de exame não realizada

#4.2

05/29/1984

RPI 710

Pedido de certificado de adição de invenção

#5.1

05/29/1984

RPI 710

Solicitação de exame técnico

#4.1

01/10/1984

RPI 690

Solicitação de exame não realizada

#4.2

08/23/1983

RPI 670

Exigência - art. 36 da LPI

#6.1

06/08/1982

RPI 607

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