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Official data from INPI

PROTETOR PARA TUBOS

ConcedidaUtility Model

Application data

Number

MU6401114

Type

Utility Model

Filing

07/16/1984

Publication

12/18/1984

Progress at the INPI

  1. Filing07/16/84
  2. Publication12/18/84
  3. Examination03/12/85
  4. Allowance01/06/87
  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

MILTON SANTOS FERREIRA [BR]

Inventors

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

06/09/1987

RPI 868

Republicação - classificação IPC

#15.11

04/14/1987

RPI 860

Deferimento

#9.1

01/06/1987

RPI 846

Exigência - art. 36 da LPI

#6.1

07/22/1986

RPI 822

Solicitação de exame técnico

#4.1

03/12/1985

RPI 751

Publicação antecipada

#3.2

12/18/1984

RPI 739

Pedido de patente depositado

#2.1

09/18/1984

RPI 726

Carta-patente expirada

#21.1

10/04/1994

RPI 1244

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