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Official data from INPI

PROCESSO PARA A MONTAGEM DE AVISADORES ACUSTICOS ELETROMAGNETICOS,ANEL PARA TROMBETA DE AVISADOR ACUSTICO E RESPECTIVA TROMBETA

ConcedidaInvention Patent

Application data

Number

PI7807496

Type

Invention Patent

Filing

11/25/1977

Publication

-

Progress at the INPI

  1. Filing11/25/77
  2. Publication
  3. Examination
  4. Allowance
  5. Grant01/31/84
  6. Expired05/24/94

The letters patent expired on 05/24/1994: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 01/31/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

FIAMM SPA

Inventors

D. F. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

01/31/1984

RPI 693

Notificação para pagamento de retribuição

#13.1

11/16/1983

RPI 682

Exigência - art. 36 da LPI

#6.1

01/25/1983

RPI 640

6.2

10/05/1982

RPI 624

Carta-patente expirada

#21.1

05/24/1994

RPI 1225

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