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Official data from INPI

CONCENTRADOR DO TIPO DE FLUXO DESCENDENTE DE PELÍCULA FINA E APARELHO DE CONCENTRAÇÃO.

Arquivada/ExtintaInvention PatentPCT · JP1989000144
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Application data

Number

PI8907347

Type

Invention Patent

Filing

02/13/1989

Publication

04/30/1991

PCT

JP1989000144
View on INPI

Progress at the INPI

  1. Filing02/13/89
  2. Publication04/30/91
  3. Examination11/03/92
  4. Allowance12/30/97
  5. Grant08/25/98
  6. Expired12/18/12

The letters patent expired on 12/18/2012: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 12/18/2012. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Hisaka Works Limited

JP

Inventors

K. M. (pessoa física)

JP

Y. S. (pessoa física)

JP

Technical data

IPC Classification

B01D 1/22

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 13/02/2009

12/18/2012

RPI 2189

Concessão da patente

#16.1

08/25/1998

RPI 1444

9.1.4

01/06/1998

RPI 1411

Deferimento

#9.1

12/30/1997

RPI 1410

Exigência - art. 36 da LPI

#6.1

12/24/1996

RPI 1360

Solicitação de exame técnico

#4.1

11/03/1992

RPI 1144

Notificação de entrada na fase nacional - PCT

#1.3

04/30/1991

RPI 1065

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