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Official data from INPI

AJUSTAGEM FOCAL EM UMA LENTE DE FOCO UNICO NUM SISTEMA DE AMPLIACAO REDUCAO CONTINUAMENTE VARIAVEL

Em AnáliseInvention Patent

Application data

Number

PI7708305

Type

Invention Patent

Filing

12/14/1977

Publication

-

Progress at the INPI

  1. Filing12/14/77
  2. Publication
  3. Examination
  4. Allowance09/21/82
  5. Grant06/28/83
  6. Terminated08/20/85

The patent was granted on 06/28/1983 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: 08/20/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

IBM

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Inventors

J. R. (pessoa física)

U. M. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

08/20/1985

RPI 774

Cessão de direito de exploração

#22.1

12/04/1984

RPI 737

Concessão da patente

#16.1

06/28/1983

RPI 662

Notificação para pagamento de retribuição

#13.1

01/25/1983

RPI 640

Deferimento

#9.1

09/21/1982

RPI 622

Exigência - art. 36 da LPI

#6.1

03/30/1982

RPI 597

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