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Official data from INPI

PROCESSO DE REVESTIMENTO DE UM SUBSTRATO PERFURADO PARA PRODUZIR UM MEMBRO PENEIRADOR DE ELEVADA RESISTENCIA A ABRASAO

Em AnáliseInvention Patent

Application data

Number

PI7806093

Type

Invention Patent

Filing

09/18/1978

Publication

-

Progress at the INPI

  1. Filing09/18/78
  2. Publication
  3. Examination
  4. Allowance05/31/83
  5. Grant11/29/83
  6. Terminated10/03/89

The patent was granted on 11/29/1983 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: 10/03/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

LITTON SYSTEMS INC

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Inventors

P. F. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

10/03/1989

RPI 989

Concessão da patente

#16.1

11/29/1983

RPI 684

Notificação para pagamento de retribuição

#13.1

09/27/1983

RPI 675

Deferimento

#9.1

05/31/1983

RPI 658

Exigência - art. 36 da LPI

#6.1

06/01/1982

RPI 606

Exigência - art. 36 da LPI

#6.1

01/19/1982

RPI 587

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