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Official data from INPI

PROCESSO DE GERAÇÃO DE DIÓXIDO DE CLORO

ConcedidaInvention Patent

Application data

Number

PI8200417

Type

Invention Patent

Filing

01/26/1982

Publication

11/30/1982

Progress at the INPI

  1. Filing01/26/82
  2. Publication11/30/82
  3. Examination06/14/83
  4. Allowance01/15/85
  5. Grant07/30/85
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 07/30/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

P C U K - Produits Chimiques Ugine Kuhlmann

FR

See this company's full portfolio

Inventors

J. C. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

81 01462 · 01/27/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/30/1985

RPI 771

Notificação para pagamento de retribuição

#13.1

05/07/1985

RPI 759

Deferimento

#9.1

01/15/1985

RPI 743

Solicitação de exame técnico

#4.1

06/14/1983

RPI 660

Publicação do pedido de patente

#3.1

11/30/1982

RPI 632

Pedido de patente depositado

#2.1

03/16/1982

RPI 595

Carta-patente expirada

#21.1

Patente extinta em 26/01/97

07/01/2008

RPI 1956

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