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Official data from INPI

CILINDRO BIOLÓGICO ROTATIVO PARA O TRATAMENTO BIOLÓGICO DAS ÁGUAS RESIDUÁRIAS DOMÉSTICAS/INDUSTRIAIS.

Em ExigênciaUtility Model
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Application data

Number

MU6601289

Type

Utility Model

Filing

07/29/1986

Publication

04/05/1988
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Progress at the INPI

  1. Filing07/29/86
  2. Publication04/05/88
  3. Examination06/28/88
  4. Allowance03/01/90
  5. Grant05/28/91
  6. Terminated10/10/95

The patent was granted on 05/28/1991 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: 09/12/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

E. C. (pessoa física)

MG, BR

Inventors

E. C. (pessoa física)

BR

Technical data

IPC Classification

C02F 1/72

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Exigência - art. 36 da LPI

#6.1

09/12/1989

RPI 986

Solicitação de exame técnico

#4.1

06/28/1988

RPI 923

Publicação do pedido de patente

#3.1

04/05/1988

RPI 911

Pedido de patente depositado

#2.1

04/22/1987

RPI 861

Anuidade - prazo legal encerrado

#18.2

10/10/1995

RPI 1297

Concessão da patente

#16.1

05/28/1991

RPI 1069

Retificação

#15.6

03/05/1991

RPI 1057

Alteração de numeração

#15.1

11/13/1990

RPI 1041

Notificação para pagamento de retribuição

#13.1

06/19/1990

RPI 1023

Deferimento

#9.1

03/01/1990

RPI 1007

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