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Official data from INPI

ARQUIVO DE DISCO COM BASE OCA SIMETRICA E METODO PARA FABRICA-LO

Concessão AnuladaInvention Patent

Application data

Number

PI7805656

Type

Invention Patent

Filing

09/30/1977

Publication

-

Progress at the INPI

  1. Filing09/30/77
  2. Publication
  3. Examination
  4. Allowance01/25/83
  5. Grant
  6. Expired05/03/94

The letters patent expired on 05/03/1994: 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: 07/26/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

IBM

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Inventors

H. M. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

16.3

07/26/1983

RPI 666

Deferimento

#9.1

01/25/1983

RPI 640

Exigência - art. 36 da LPI

#6.1

07/13/1982

RPI 612

Exigência - art. 36 da LPI

#6.1

01/26/1982

RPI 588

Carta-patente expirada

#21.1

05/03/1994

RPI 1222

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