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Official data from INPI

SISTEMA PARA CONTROLAR A VALIDADE DA LEITURA POR UMA MAQUINA,DE UM CODIGO CONSTANTE DE UM DOCUMENTO

ConcedidaInvention Patent

Application data

Number

PI7801218

Type

Invention Patent

Filing

03/04/1977

Publication

-

Progress at the INPI

  1. Filing03/04/77
  2. Publication
  3. Examination
  4. Allowance12/20/83
  5. Grant04/30/85
  6. Terminated06/29/93

The patent was granted on 04/30/1985 and later terminated. Protection ended before the full term and the technology is in the public domain in Brazil.

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Latest action published by the INPI: 04/30/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. B. (pessoa física)

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Inventors

S. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/30/1985

RPI 758

Deferimento

#9.1

12/20/1983

RPI 687

Exigência - art. 36 da LPI

#6.1

07/12/1983

RPI 664

21.5

07/06/1993

RPI 1179

Carta-patente expirada

#21.1

06/29/1993

RPI 1178

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