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Official data from INPI

PROCESSO DE SEPARAÇÃO DE UM CONJUNTO DE PARTÍCULAS.

Em ExigênciaInvention Patent

Application data

Number

PI8307370

Type

Invention Patent

Filing

05/23/1983

Publication

05/08/1984

Progress at the INPI

  1. Filing05/23/83
  2. Publication05/08/84
  3. Examination03/04/86
  4. Allowance06/05/90
  5. Grant12/26/90
  6. Terminated05/30/95

The patent was granted on 12/26/1990 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: 12/12/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Mag-Sep Corp.

US

Inventors

A. D. (pessoa física)

US

M. W. (pessoa física)

US

U. A. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

US

380.753 · 05/21/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Exigência - art. 36 da LPI

#6.1

12/12/1989

RPI 999

Solicitação de exame técnico

#4.1

03/04/1986

RPI 802

Notificação de entrada na fase nacional - PCT

#1.3

05/08/1984

RPI 707

Anuidade - prazo legal encerrado

#18.2

05/30/1995

RPI 1278

Concessão da patente

#16.1

12/26/1990

RPI 1047

Notificação para pagamento de retribuição

#13.1

09/18/1990

RPI 1033

Deferimento

#9.1

06/05/1990

RPI 1021

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