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Official data from INPI

VÁLVULA

DeferidaUtility Model

Application data

Number

MU6600681

Type

Utility Model

Filing

05/12/1986

Publication

10/14/1986

Progress at the INPI

  1. Filing05/12/86
  2. Publication10/14/86
  3. Examination12/09/86
  4. Allowance08/29/89
  5. Grant05/29/90
  6. Expired09/17/96

The letters patent expired on 09/17/1996: 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: 08/29/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Dutoflex Tubos Flexíveis Ind. e Com. Ltda

SP, BR

Inventors

M. P. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

08/29/1989

RPI 984

14.1

11/22/1988

RPI 944

Solicitação de exame técnico

#4.1

12/09/1986

RPI 842

Publicação antecipada

#3.2

10/14/1986

RPI 834

Pedido de patente depositado

#2.1

10/07/1986

RPI 833

Carta-patente expirada

#21.1

09/17/1996

RPI 1346

Concessão da patente

#16.1

05/29/1990

RPI 1020

Notificação para pagamento de retribuição

#13.1

01/09/1990

RPI 1001

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