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Official data from INPI

ARQUIVO DE DISCOS

ConcedidaInvention Patent

Application data

Number

PI8000313

Type

Invention Patent

Filing

01/25/1979

Publication

-

Progress at the INPI

  1. Filing01/25/79
  2. Publication
  3. Examination08/03/82
  4. Allowance11/16/83
  5. Grant04/24/84
  6. Expired05/16/95

The letters patent expired on 05/16/1995: 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: 04/24/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

IBM

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Inventors

M. R. (pessoa física)

P. T. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/24/1984

RPI 705

Deferimento

#9.1

11/16/1983

RPI 682

Republicação - classificação IPC

#15.11

06/07/1983

RPI 659

Exigência - art. 36 da LPI

#6.1

05/31/1983

RPI 658

Solicitação de exame técnico

#4.1

08/03/1982

RPI 615

Carta-patente expirada

#21.1

05/16/1995

RPI 1276

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