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Official data from INPI

DISPOSITIVO DE ESCRITA E/OU CORRECAO PARA MAQUINAS DE ESCREVER

ConcedidaInvention Patent

Application data

Number

PI7904546

Type

Invention Patent

Filing

07/18/1978

Publication

-

Progress at the INPI

  1. Filing07/18/78
  2. Publication
  3. Examination06/29/82
  4. Allowance08/21/84
  5. Grant03/26/85
  6. Expired04/18/95

The letters patent expired on 04/18/1995: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 03/26/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

OLIVETTI & CO SPA

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Inventors

F. R. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/26/1985

RPI 753

Notificação para pagamento de retribuição

#13.1

12/11/1984

RPI 738

Deferimento

#9.1

08/21/1984

RPI 722

Exigência - art. 36 da LPI

#6.1

02/07/1984

RPI 694

Exigência - art. 36 da LPI

#6.1

03/29/1983

RPI 649

Solicitação de exame técnico

#4.1

06/29/1982

RPI 610

Carta-patente expirada

#21.1

04/18/1995

RPI 1272

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