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Official data from INPI

DISPOSITIVO DE SEGURANÇA CONTRA A AVARIA DO ELEMENTO FILTRANTE

Arquivada/ExtintaInvention Patent

Application data

Number

PI9600697

Type

Invention Patent

Filing

03/15/1996

Publication

12/30/1997

Progress at the INPI

  1. Filing03/15/96
  2. Publication12/30/97
  3. Examination
  4. Allowance02/28/01
  5. Grant06/12/01
  6. Expired04/12/16

The letters patent expired on 04/12/2016: 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: 04/12/2016. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. T. (pessoa física)

GO, BR

Inventors

A. T. (pessoa física)

BR

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 15/03/2016

04/12/2016

RPI 2362

Concessão da patente

#16.1

06/12/2001

RPI 1588

Republicação - classificação IPC

#15.11

Alterada a classificação para Int.Cl.6 B01D 35/143, B01D 35/147, B01D 35/16 e B01D 29/19.

02/28/2001

RPI 1573

Deferimento

#9.1

02/28/2001

RPI 1573

Publicação do pedido de patente

#3.1

12/30/1997

RPI 1410

Pedido de patente depositado

#2.1

04/30/1996

RPI 1326

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