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Official data from INPI

FERRAMENTA

ConcedidaUtility Model

Application data

Number

MU6400578

Type

Utility Model

Filing

04/24/1984

Publication

07/24/1984

Progress at the INPI

  1. Filing04/24/84
  2. Publication07/24/84
  3. Examination10/16/84
  4. Allowance02/17/87
  5. Grant09/29/87
  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: 09/29/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

SAO PAULO TELECOM TELESP SA [BR]

Inventors

V. F. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/29/1987

RPI 884

Notificação para pagamento de retribuição

#13.1

06/23/1987

RPI 870

Deferimento

#9.1

02/17/1987

RPI 852

Exigência - art. 36 da LPI

#6.1

07/15/1986

RPI 821

Solicitação de exame técnico

#4.1

10/16/1984

RPI 730

Publicação antecipada

#3.2

07/24/1984

RPI 718

Pedido de patente depositado

#2.1

07/03/1984

RPI 715

Carta-patente expirada

#21.1

10/04/1994

RPI 1244

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