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Official data from INPI

DISPOSITIVOS PARA CONTROLE DE VAZÃO

Em ExigênciaUtility Model

Application data

Number

MU6600800

Type

Utility Model

Filing

05/19/1986

Publication

01/05/1988

Progress at the INPI

  1. Filing05/19/86
  2. Publication01/05/88
  3. Examination04/05/88
  4. Allowance04/10/90
  5. Grant02/13/91
  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: 10/17/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Brasilit S/A

SP, BR

Inventors

M. L. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Exigência - art. 36 da LPI

#6.1

10/17/1989

RPI 991

Solicitação de exame técnico

#4.1

04/05/1988

RPI 911

Publicação do pedido de patente

#3.1

01/05/1988

RPI 898

Pedido de patente depositado

#2.1

01/21/1987

RPI 848

Carta-patente expirada

#21.1

09/17/1996

RPI 1346

20.7

05/11/1993

RPI 1171

Pedido de licença compulsória

#20.1

03/23/1993

RPI 1164

Concessão da patente

#16.1

02/13/1991

RPI 1054

14.1

09/11/1990

RPI 1032

Deferimento

#9.1

04/10/1990

RPI 1013

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