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Official data from INPI

SISTEMA MODULAR DE GERAÇÃO DE SINAIS SINCRONOS.

ConcedidaInvention Patent
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Application data

Number

PI8002758

Type

Invention Patent

Filing

04/30/1980

Publication

12/22/1981
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Progress at the INPI

  1. Filing04/30/80
  2. Publication12/22/81
  3. Examination07/20/82
  4. Allowance10/23/84
  5. Grant05/28/85
  6. Expired06/13/95

The letters patent expired on 06/13/1995: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 05/28/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Telecomunicações Brasileiras S/A-Telebrás

SP, BR

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Inventors

D. I. (pessoa física)

V. B. (pessoa física)

Technical data

IPC Classification

H03L 7/06

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/28/1985

RPI 762

Notificação para pagamento de retribuição

#13.1

03/05/1985

RPI 750

Deferimento

#9.1

10/23/1984

RPI 731

Exigência - art. 36 da LPI

#6.1

04/24/1984

RPI 705

Exigência - art. 36 da LPI

#6.1

11/01/1983

RPI 680

Solicitação de exame técnico

#4.1

07/20/1982

RPI 613

Solicitação de exame não realizada

#4.2

04/13/1982

RPI 599

Publicação do pedido de patente

#3.1

12/22/1981

RPI 583

Carta-patente expirada

#21.1

06/13/1995

RPI 1280

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