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Official data from INPI

DISPOSITIVO DESTINADO A ABERTURA E DEPURACAO DOS RESIDUOS DE ALGODAO

Concessão AnuladaInvention Patent

Application data

Number

PI7808114

Type

Invention Patent

Filing

12/12/1977

Publication

-

Progress at the INPI

  1. Filing12/12/77
  2. Publication
  3. Examination
  4. Allowance07/19/83
  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: 04/17/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

T. M. (pessoa física)

Inventors

H. F. (pessoa física)

M. F. (pessoa física)

S. H. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

16.3

04/17/1984

RPI 704

Concessão da patente

#16.1

01/31/1984

RPI 693

Notificação para pagamento de retribuição

#13.1

11/16/1983

RPI 682

Deferimento

#9.1

07/19/1983

RPI 665

Exigência - art. 36 da LPI

#6.1

06/01/1982

RPI 606

6.2

12/01/1981

RPI 580

Carta-patente expirada

#21.1

05/24/1994

RPI 1225

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