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Official data from INPI

TAMPA DE VENTILACAO EJETAVEL

Concessão AnuladaInvention Patent

Application data

Number

PI7901508

Type

Invention Patent

Filing

03/12/1979

Publication

-

Progress at the INPI

  1. Filing03/12/79
  2. Publication
  3. Examination08/03/82
  4. Allowance12/06/83
  5. Grant05/29/84
  6. Expired06/21/94

The letters patent expired on 06/21/1994: 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: 08/21/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

D. B. (pessoa física)

Inventors

F. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

16.4

08/21/1984

RPI 722

Concessão da patente

#16.1

05/29/1984

RPI 710

Notificação para pagamento de retribuição

#13.1

03/27/1984

RPI 701

Deferimento

#9.1

12/06/1983

RPI 685

Exigência - art. 36 da LPI

#6.1

06/07/1983

RPI 659

Solicitação de exame técnico

#4.1

08/03/1982

RPI 615

Carta-patente expirada

#21.1

06/21/1994

RPI 1229

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