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Official data from INPI

PROCESSO VERSATIL PARA A GERACAO DE DIOXIDO DE CLORO E CLORO

Concessão AnuladaInvention Patent

Application data

Number

PI7908000

Type

Invention Patent

Filing

12/18/1978

Publication

-

Progress at the INPI

  1. Filing12/18/78
  2. Publication
  3. Examination07/13/82
  4. Allowance08/20/85
  5. Grant04/29/86
  6. Expired05/02/95

The letters patent expired on 05/02/1995: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 07/29/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

HOOKER CHEMICALS PLASTICS CORP

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Inventors

L. P. (pessoa física)

P. H. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

16.3

07/29/1986

RPI 823

Concessão da patente

#16.1

04/29/1986

RPI 810

Notificação para pagamento de retribuição

#13.1

12/24/1985

RPI 792

Deferimento

#9.1

08/20/1985

RPI 774

Exigência - art. 36 da LPI

#6.1

12/18/1984

RPI 739

14.1

04/10/1984

RPI 703

14.4

11/01/1983

RPI 680

Conhecimento de parecer técnico

#7.1

08/23/1983

RPI 670

6.2

02/08/1983

RPI 642

Solicitação de exame técnico

#4.1

07/13/1982

RPI 612

Carta-patente expirada

#21.1

05/02/1995

RPI 1274

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