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Official data from INPI

DISPOSITIVO FECHADO, DE FLUIDIZAÇÃO POTNCIAL, PARA O TRANSPORTE HORIZONTAL DE MATERIAIS PULVERULENTOSA.

ConcedidaInvention Patent

Application data

Number

PI8307584

Type

Invention Patent

Filing

10/18/1983

Publication

09/25/1984

Progress at the INPI

  1. Filing10/18/83
  2. Publication09/25/84
  3. Examination05/13/86
  4. Allowance12/08/87
  5. Grant06/28/88
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 06/28/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. P. (pessoa física)

FR

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Inventors

H. [. (pessoa física)

V. [. (pessoa física)

Technical data

IPC Classification

Priority claims

FR

83/00211 · 10/18/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/28/1988

RPI 923

Notificação para pagamento de retribuição

#13.1

04/26/1988

RPI 914

Deferimento

#9.1

12/08/1987

RPI 894

Exigência - art. 36 da LPI

#6.1

06/30/1987

RPI 871

Solicitação de exame técnico

#4.1

05/13/1986

RPI 812

Notificação de entrada na fase nacional - PCT

#1.3

09/25/1984

RPI 727

Carta-patente expirada

#21.1

Patente extinta em 18/10/98

07/01/2008

RPI 1956

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