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Official data from INPI

APERFEICOAMENTO EM OU RELATIVOS A MATERIAIS FOTOSSENSIVEIS,CHAPA FOTOSENSIVEL COMPREENDENDO O MATERIAL E PROCESSO DE PRODUCAO DA DITA CHAPA

Em AnáliseInvention Patent

Application data

Number

PI7608579

Type

Invention Patent

Filing

12/23/1975

Publication

-

Progress at the INPI

  1. Filing12/23/75
  2. Publication
  3. Examination
  4. Allowance
  5. Grant11/10/81
  6. Terminated11/16/88

The patent was granted on 11/10/1981 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 11/16/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

VICKERS LTD

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Inventors

G. A. (pessoa física)

H. S. (pessoa física)

W. C. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

11/16/1988

RPI 943

Concessão da patente

#16.1

11/10/1981

RPI 577

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