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Official data from INPI

APARELHO PARA TESTE DA INTEGRIDADE DO PERCURSO DA CORRENTE ENTRE DOIS PONTOS EM UM CIRCUITO ELETRICO

Em AnáliseInvention Patent

Application data

Number

PI7804582

Type

Invention Patent

Filing

07/20/1977

Publication

-

Progress at the INPI

  1. Filing07/20/77
  2. Publication
  3. Examination
  4. Allowance02/16/82
  5. Grant
  6. Expired11/30/93

The letters patent expired on 11/30/1993: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 06/08/1982. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DANA CORP

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Inventors

No inventors listed.

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação para pagamento de retribuição

#13.1

06/08/1982

RPI 607

Deferimento

#9.1

02/16/1982

RPI 591

Carta-patente expirada

#21.1

11/30/1993

RPI 1200

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