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Official data from INPI

Tampa-filtro.

Em AnáliseUtility Model

Application data

Number

MU6401064

Type

Utility Model

Filing

07/09/1984

Publication

02/18/1986

Progress at the INPI

  1. Filing07/09/84
  2. Publication02/18/86
  3. Examination10/14/86
  4. Allowance09/08/87
  5. Grant05/31/88
  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: 10/04/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

T-Fal Artigos Domésticos Ltda

SP, BR

See this company's full portfolio

Inventors

F. C. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.7

10/04/1988

RPI 937

Concessão da patente

#16.1

05/31/1988

RPI 919

Notificação para pagamento de retribuição

#13.1

01/26/1988

RPI 901

Deferimento

#9.1

09/08/1987

RPI 881

Solicitação de exame técnico

#4.1

10/14/1986

RPI 834

Publicação do pedido de patente

#3.1

02/18/1986

RPI 800

Pedido de patente depositado

#2.1

09/11/1984

RPI 725

Carta-patente expirada

#21.1

10/04/1994

RPI 1244

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