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Official data from INPI

TANQUE ELETROLÍTICO DE FLUXO VERTICAL ASCENDENTE PARA O TRATAMENTO DE ÁGUA E ESGOTOS

Em AnáliseUtility Model
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Application data

Number

MU7002734

Type

Utility Model

Filing

12/10/1990

Publication

10/15/1991
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Progress at the INPI

  1. Filing12/10/90
  2. Publication10/15/91
  3. Examination12/17/91
  4. Allowance03/28/95
  5. Grant11/28/95
  6. Terminated07/23/96

The patent was granted on 11/28/1995 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 07/23/1996. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Hemfibra Indústria e Comércio Ltda

RN, BR

Inventors

R. D. (pessoa física)

BR

Technical data

IPC Classification

C02F 1/46

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

07/23/1996

RPI 1338

Concessão da patente

#16.1

11/28/1995

RPI 1304

Notificação para pagamento de retribuição

#13.1

09/05/1995

RPI 1292

Deferimento

#9.1

03/28/1995

RPI 1269

Exigência - art. 36 da LPI

#6.1

10/25/1994

RPI 1247

Exigência - art. 36 da LPI

#6.1

03/08/1994

RPI 1214

Solicitação de exame técnico

#4.1

12/17/1991

RPI 1098

Publicação antecipada

#3.2

10/15/1991

RPI 1089

Pedido de patente depositado

#2.1

07/09/1991

RPI 1075

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