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Official data from INPI

DISPOSITIVO PARA GRAVAR E/OU LER INFORMACOES BINARIAS EM AMBAS AS FACES DE UM DISCO MAGNETICO FLEXIVEL

ConcedidaInvention Patent

Application data

Number

PI8104468

Type

Invention Patent

Filing

07/14/1980

Publication

03/30/1982

Progress at the INPI

  1. Filing07/14/80
  2. Publication03/30/82
  3. Examination06/05/84
  4. Allowance07/09/85
  5. Grant02/04/86
  6. Terminated02/04/92

The patent was granted on 02/04/1986 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 02/04/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ELETTRONICA BELMONTE SAS

OLIVETTI & CO SPA

Inventors

D. G. (pessoa física)

G. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/04/1986

RPI 798

Notificação para pagamento de retribuição

#13.1

11/12/1985

RPI 786

Deferimento

#9.1

07/09/1985

RPI 768

Republicação - classificação IPC

#15.11

05/07/1985

RPI 759

Exigência - art. 36 da LPI

#6.1

12/18/1984

RPI 739

Solicitação de exame técnico

#4.1

06/05/1984

RPI 711

Publicação do pedido de patente

#3.1

03/30/1982

RPI 597

Anuidade - prazo legal encerrado

#18.2

02/04/1992

RPI 1105

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