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Official data from INPI

APERFEICOAMENTOS EM PROJETOR OTICO DO TIPO PARA PROJETAR UM CONE DE LUZ A PARTIR DE UMA MICROFILMAGEM ILUMINADA,EM ELEMENTO OTICO DE DUPLA FUNCAO E EM DISPOSITIVO OTICO

Em AnáliseInvention Patent

Application data

Number

PI7705679

Type

Invention Patent

Filing

09/13/1976

Publication

-

Progress at the INPI

  1. Filing09/13/76
  2. Publication
  3. Examination
  4. Allowance
  5. Grant
  6. Terminated12/15/87

The patent was granted 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: 12/15/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

IZON CORP

Inventors

No inventors listed.

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

12/15/1987

RPI 895

Notificação para pagamento de retribuição

#13.1

12/22/1981

RPI 583

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