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Official data from INPI

CONTROLADOR DE VAZÃO

Arquivada/ExtintaUtility Model

Application data

Number

MU7001051

Type

Utility Model

Filing

06/07/1990

Publication

01/22/1991

Progress at the INPI

  1. Filing06/07/90
  2. Publication01/22/91
  3. Examination05/05/92
  4. Allowance12/14/93
  5. Grant06/28/94
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 07/01/2008. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

No applicants.

Inventors

A. B. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 07/06/2000

07/01/2008

RPI 1956

Concessão da patente

#16.1

06/28/1994

RPI 1230

Deferimento

#9.1

12/14/1993

RPI 1202

Solicitação de exame técnico

#4.1

05/05/1992

RPI 1118

Publicação antecipada

#3.2

01/22/1991

RPI 1051

Pedido de patente depositado

#2.1

09/04/1990

RPI 1031

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