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Official data from INPI

DISPOSIÇÃO INTRODUZIDA EM DETECTOR DE FLUXO.

Arquivada/ExtintaUtility Model

Application data

Number

MU6902464

Type

Utility Model

Filing

11/29/1989

Publication

01/08/1991

Progress at the INPI

  1. Filing11/29/89
  2. Publication01/08/91
  3. Examination03/26/91
  4. Allowance04/19/94
  5. Grant12/27/94
  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

R. A. (pessoa física)

SP, BR

Inventors

R. A. (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 29/11/1999

07/01/2008

RPI 1956

201

01/09/1996

RPI 1310

Pedido de licença voluntária

#17.1

04/18/1995

RPI 1272

Concessão da patente

#16.1

12/27/1994

RPI 1256

Notificação para pagamento de retribuição

#13.1

08/16/1994

RPI 1237

Deferimento

#9.1

04/19/1994

RPI 1220

Solicitação de exame técnico

#4.1

03/26/1991

RPI 1060

Publicação antecipada

#3.2

01/08/1991

RPI 1049

Pedido de patente depositado

#2.1

04/24/1990

RPI 1015

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