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Official data from INPI

DISPOSITIVO PARA A SEPARAÇÃO DE GRÃOS MAIS PESADOS DE UM MATERIAL A GRANEL DE GRÃOS MAIS LEVES E PÓ.

ConcedidaInvention Patent

Application data

Number

PI8100521

Type

Invention Patent

Filing

01/29/1981

Publication

-

Progress at the INPI

  1. Filing01/29/81
  2. Publication
  3. Examination05/24/83
  4. Allowance12/04/84
  5. Grant05/28/85
  6. Terminated02/04/92

The patent was granted on 05/28/1985 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 05/28/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

W. S. (pessoa física)

Inventors

S. W. (pessoa física)

Technical data

IPC Classification

Priority claims

DE

P 30 03 308.0 · 01/30/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/28/1985

RPI 762

Notificação para pagamento de retribuição

#13.1

04/09/1985

RPI 755

Deferimento

#9.1

12/04/1984

RPI 737

Exigência - art. 36 da LPI

#6.1

06/05/1984

RPI 711

Exigência - art. 36 da LPI

#6.1

11/16/1983

RPI 682

Solicitação de exame técnico

#4.1

05/24/1983

RPI 657

Anuidade - prazo legal encerrado

#18.2

02/04/1992

RPI 1105

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