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Official data from INPI

SISTEMA E PROCESSO DE DISPERSÃO DE AGREGADOS EM MEIO FLUIDO

Em AnáliseInvention Patent

Application data

Number

PI8402659

Type

Invention Patent

Filing

05/31/1984

Publication

05/07/1985

Progress at the INPI

  1. Filing05/31/84
  2. Publication05/07/85
  3. Examination04/28/87
  4. Allowance09/22/92
  5. Grant05/25/93
  6. Terminated09/05/95

The patent was granted on 05/25/1993 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: 05/09/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

P. C. (pessoa física)

US

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Inventors

D. P. (pessoa física)

US

J. I. (pessoa física)

US

P. D. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

501.889 · 06/07/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Conhecimento de parecer técnico

#7.1

05/09/1989

RPI 968

6.2

07/26/1988

RPI 927

15.19

11/17/1987

RPI 891

15.5

09/22/1987

RPI 883

Solicitação de exame técnico

#4.1

04/28/1987

RPI 862

Publicação do pedido de patente

#3.1

05/07/1985

RPI 759

Pedido de patente depositado

#2.1

08/07/1984

RPI 720

Anuidade - prazo legal encerrado

#18.2

09/05/1995

RPI 1292

Concessão da patente

#16.1

05/25/1993

RPI 1173

Notificação para pagamento de retribuição

#13.1

02/02/1993

RPI 1157

Deferimento

#9.1

09/22/1992

RPI 1138

Exigência - art. 36 da LPI

#6.1

01/08/1991

RPI 1049

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