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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8006294

Type

Invention Patent

Filing

09/30/1980

Publication

-

Progress at the INPI

  1. Filing09/30/80
  2. Publication
  3. Examination
  4. Allowance07/05/83
  5. Grant02/28/84
  6. Expired11/07/95

The letters patent expired on 11/07/1995: 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: 02/28/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Telecomunicações do Rio de Janeiro S/A - Telerj

RJ, BR

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Inventors

T. S. (pessoa física)

Technical data

IPC Classification

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

11/08/1983

RPI 681

Deferimento

#9.1

07/05/1983

RPI 663

Exigência - art. 36 da LPI

#6.1

10/19/1982

RPI 626

Carta-patente expirada

#21.1

11/07/1995

RPI 1301

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