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Official data from INPI

APARELHO PARA SEPARAR METÉRIA SÓLIDA DE UM FLUIDO, E, PROCESSO PARA REMOVER PARTÍCULAS SÓLIDAS DE FLUÍDOS

Em AnáliseInvention Patent

Application data

Number

PI8801933

Type

Invention Patent

Filing

04/22/1988

Publication

11/22/1988

Progress at the INPI

  1. Filing04/22/88
  2. Publication11/22/88
  3. Examination05/09/89
  4. Allowance12/24/96
  5. Grant08/26/97
  6. Expired08/26/08

The letters patent expired on 08/26/2008: 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: 05/09/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

K. Y. (pessoa física)

US

Inventors

K. Y. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

045.365 · 05/01/1987

US

174.876 · 03/29/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

05/09/1989

RPI 968

Publicação do pedido de patente

#3.1

11/22/1988

RPI 944

Pedido de patente depositado

#2.1

10/25/1988

RPI 940

Carta-patente expirada

#21.1

Patente extinta em 22/04/2008

08/26/2008

RPI 1964

Alteração de sede deferida

#25.7

09/23/1997

RPI 1399

Concessão da patente

#16.1

08/26/1997

RPI 1395

Deferimento

#9.1

12/24/1996

RPI 1360

Exigência - art. 36 da LPI

#6.1

01/09/1996

RPI 1310

Exigência - art. 36 da LPI

#6.1

07/18/1995

RPI 1285

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