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Official data from INPI

DISPOSITIVO PARA RETER PARTICULAS DE SOLVENTE ARRASTADAS PELA FASE AQUOSA NUM SISTEMA DE EXTRACAO POR SOLVENTE

Em AnáliseInvention Patent

Application data

Number

PI8002057

Type

Invention Patent

Filing

04/02/1980

Publication

10/06/1981

Progress at the INPI

  1. Filing04/02/80
  2. Publication10/06/81
  3. Examination
  4. Allowance12/11/84
  5. Grant06/25/85
  6. Terminated05/16/89

The patent was granted on 06/25/1985 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 05/16/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

IPEN SAO PAULO INST PESQUISAS [BR]

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Inventors

J. F. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

05/16/1989

RPI 969

Cessão de direito de exploração

#22.1

11/26/1985

RPI 788

Concessão da patente

#16.1

06/25/1985

RPI 766

Notificação para pagamento de retribuição

#13.1

04/09/1985

RPI 755

Deferimento

#9.1

12/11/1984

RPI 738

Republicação - classificação IPC

#15.11

03/07/1984

RPI 698

Exigência - art. 36 da LPI

#6.1

12/06/1983

RPI 685

Solicitação de exame não realizada

#4.2

06/29/1982

RPI 610

Publicação do pedido de patente

#3.1

10/06/1981

RPI 572

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