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Official data from INPI

IDENTIFICADOR DIGITAL DO TELEFONE CHAMADOR

ConcedidaInvention Patent
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Application data

Number

PI8003077

Type

Invention Patent

Filing

05/02/1980

Publication

-
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Progress at the INPI

  1. Filing05/02/80
  2. Publication
  3. Examination
  4. Allowance04/17/84
  5. Grant07/30/85
  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: 07/30/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. J. (pessoa física)

S. C. (pessoa física)

Inventors

C. [. (pessoa física)

S. [. (pessoa física)

Technical data

IPC Classification

H04M 1/57

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/30/1985

RPI 771

Notificação para pagamento de retribuição

#13.1

06/18/1985

RPI 765

110

03/26/1985

RPI 753

Recurso

#12.1

07/17/1984

RPI 717

14.1

07/10/1984

RPI 716

Deferimento

#9.1

04/17/1984

RPI 704

Exigência - art. 36 da LPI

#6.1

11/29/1983

RPI 684

Exigência - art. 36 da LPI

#6.1

07/12/1983

RPI 664

Carta-patente expirada

#21.1

06/13/1995

RPI 1280

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