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Official data from INPI

PROCESSO E DISPOSITIVO DE COMANDO DE UM CADINHO DE ESCOAMENTO CONTINUO

ConcedidaInvention Patent

Application data

Number

PI7706931

Type

Invention Patent

Filing

10/18/1976

Publication

-

Progress at the INPI

  1. Filing10/18/76
  2. Publication
  3. Examination
  4. Allowance05/18/82
  5. Grant11/30/82
  6. Expired07/06/93

The letters patent expired on 07/06/1993: 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: 11/30/1982. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

P. M. (pessoa física)

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Inventors

B. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/30/1982

RPI 632

Notificação para pagamento de retribuição

#13.1

09/08/1982

RPI 620

Deferimento

#9.1

05/18/1982

RPI 604

15.0

12/01/1981

RPI 580

Exigência - art. 36 da LPI

#6.1

10/13/1981

RPI 573

Carta-patente expirada

#21.1

07/06/1993

RPI 1179

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