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Official data from INPI

PROCESSO PARA REDUCAO DE MICROVACUOS EM ISOLANTE EXTRUDADO DE CABOS ELETRICOS

Em AnáliseInvention Patent

Application data

Number

PI7902328

Type

Invention Patent

Filing

04/19/1978

Publication

-

Progress at the INPI

  1. Filing04/19/78
  2. Publication
  3. Examination
  4. Allowance05/24/83
  5. Grant12/27/83
  6. Terminated05/17/88

The patent was granted on 12/27/1983 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: 05/17/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PIRELLI

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Inventors

L. G. (pessoa física)

V. B. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

05/17/1988

RPI 917

Concessão da patente

#16.1

12/27/1983

RPI 688

Notificação para pagamento de retribuição

#13.1

09/27/1983

RPI 675

Deferimento

#9.1

05/24/1983

RPI 657

8.1

12/14/1982

RPI 634

Exigência - art. 36 da LPI

#6.1

08/10/1982

RPI 616

14.1

04/13/1982

RPI 599

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