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Official data from INPI

SISTEMA FECHADO DE RECICLAGEM DE AGUA,PROCESSO PARA PROCESSAMENTO DE AGUA RESIDUAL,LEITO DE TROCA DE IONS E DIGESTOR BIOLOGICO

Em AnáliseInvention Patent
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Application data

Number

PI7800388

Type

Invention Patent

Filing

01/24/1977

Publication

-
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Progress at the INPI

  1. Filing01/24/77
  2. Publication
  3. Examination
  4. Allowance12/06/83
  5. Grant05/29/84
  6. Terminated06/14/88

The patent was granted on 05/29/1984 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: 06/14/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PURE CYCLE CORP

Inventors

S. H. (pessoa física)

Technical data

IPC Classification

C02B 1/70C02C 1/14

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

06/14/1988

RPI 921

Concessão da patente

#16.1

05/29/1984

RPI 710

Notificação para pagamento de retribuição

#13.1

03/27/1984

RPI 701

Deferimento

#9.1

12/06/1983

RPI 685

Exigência - art. 36 da LPI

#6.1

04/19/1983

RPI 652

15.0

04/27/1982

RPI 601

Exigência - art. 36 da LPI

#6.1

03/09/1982

RPI 594

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