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Official data from INPI

APARELHO PARA A SEPARACAO DE SOLIDOS E LIQUIDOS DE UMA SUSPENSAO MEDIANTE PENEIRACAO

ConcedidaInvention Patent

Application data

Number

PI7706186

Type

Invention Patent

Filing

09/17/1976

Publication

-

Progress at the INPI

  1. Filing09/17/76
  2. Publication
  3. Examination
  4. Allowance05/22/84
  5. Grant11/27/84
  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.

Talk to a specialist

Latest action published by the INPI: 11/27/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

CONTRA SHEAR HOLDINGS

Inventors

B. G. (pessoa física)

P. E. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/27/1984

RPI 736

Notificação para pagamento de retribuição

#13.1

09/04/1984

RPI 724

Deferimento

#9.1

05/22/1984

RPI 709

Exigência - art. 36 da LPI

#6.1

09/13/1983

RPI 673

15.0

03/30/1982

RPI 597

Deferimento

#9.1

03/30/1982

RPI 597

Exigência - art. 36 da LPI

#6.1

12/15/1981

RPI 582

Carta-patente expirada

#21.1

07/06/1993

RPI 1179

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