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Official data from INPI

PROCESSO APERFEICOADO PARA A PRODUCAO DE DIOXIDO DE CLORO

Em AnáliseInvention Patent

Application data

Number

PI7708725

Type

Invention Patent

Filing

12/30/1976

Publication

-

Progress at the INPI

  1. Filing12/30/76
  2. Publication
  3. Examination
  4. Allowance08/23/83
  5. Grant08/28/84
  6. Terminated12/15/87

The patent was granted on 08/28/1984 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: 12/15/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

HOOKER CHEMICALS PLASTICS CORP

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Inventors

F. W. (pessoa física)

S. E. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

12/15/1987

RPI 895

Concessão da patente

#16.1

08/28/1984

RPI 723

14.1

04/10/1984

RPI 703

Notificação para pagamento de retribuição

#13.1

12/13/1983

RPI 686

14.4

11/01/1983

RPI 680

Deferimento

#9.1

08/23/1983

RPI 670

8.1

01/12/1982

RPI 586

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