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Official data from INPI

APARELHO PARA MEDIR TURBIDEZ EM ÁGUAS

Arquivada/ExtintaUtility Model
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Application data

Number

MU7002643

Type

Utility Model

Filing

12/06/1990

Publication

10/15/1991
View on INPI

Progress at the INPI

  1. Filing12/06/90
  2. Publication10/15/91
  3. Examination11/26/91
  4. Allowance06/15/99
  5. Grant09/08/99
  6. Expired08/26/08

The letters patent expired on 08/26/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 08/26/2008. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Companhia de Saneamento de Minas Gerais - Copasa

MG, BR

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Inventors

C. C. (pessoa física)

BR

G. M. (pessoa física)

BR

W. R. (pessoa física)

BR

Technical data

IPC Classification

C02F 1/00G01N 33/18

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 08/09/2006

08/26/2008

RPI 1964

Concessão da patente

#16.1

09/08/1999

RPI 1496

Deferimento

#9.1

06/15/1999

RPI 1484

Retificação

#15.6

12/05/1995

RPI 1305

Alteração de numeração

#15.1

07/25/1995

RPI 1286

15.5

07/25/1995

RPI 1286

15.17

08/16/1994

RPI 1237

Retificação

#15.3

05/24/1994

RPI 1225

Solicitação de exame técnico

#4.1

05/12/1992

RPI 1119

Solicitação de exame não realizada

#4.2

01/21/1992

RPI 1103

Solicitação de exame técnico

#4.1

11/26/1991

RPI 1095

Publicação antecipada

#3.2

10/15/1991

RPI 1089

Pedido de patente depositado

#2.1

07/02/1991

RPI 1074

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