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Official data from INPI

APERFEIÇOAMENTO EM FILTRO PARA ÁGUA.

ConcedidaUtility Model

Application data

Number

MU6400976

Type

Utility Model

Filing

06/26/1984

Publication

02/04/1986

Progress at the INPI

  1. Filing06/26/84
  2. Publication02/04/86
  3. Examination06/24/86
  4. Allowance04/26/88
  5. Grant11/29/88
  6. Expired10/04/94

The letters patent expired on 10/04/1994: 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: 11/29/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

E. P. (pessoa física)

Inventors

E. P. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/29/1988

RPI 945

Notificação para pagamento de retribuição

#13.1

08/09/1988

RPI 929

Deferimento

#9.1

04/26/1988

RPI 914

Exigência - art. 36 da LPI

#6.1

10/13/1987

RPI 886

Solicitação de exame técnico

#4.1

06/24/1986

RPI 818

Publicação do pedido de patente

#3.1

02/04/1986

RPI 798

Pedido de patente depositado

#2.1

08/28/1984

RPI 723

Carta-patente expirada

#21.1

10/04/1994

RPI 1244

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