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Official data from INPI

PROCESSO PARA A PRODUCAO DE DIOXIDO DE CLORO

ConcedidaInvention Patent

Application data

Number

PI8002544

Type

Invention Patent

Filing

04/27/1979

Publication

-

Progress at the INPI

  1. Filing04/27/79
  2. Publication
  3. Examination09/28/82
  4. Allowance07/17/84
  5. Grant02/26/85
  6. Expired06/13/95

The letters patent expired on 06/13/1995: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 02/26/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

METALLGESELLSCHAFT AG

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Inventors

B. S. (pessoa física)

J. P. (pessoa física)

L. K. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/26/1985

RPI 749

Notificação para pagamento de retribuição

#13.1

11/13/1984

RPI 734

Deferimento

#9.1

07/17/1984

RPI 717

Exigência - art. 36 da LPI

#6.1

01/10/1984

RPI 690

Solicitação de exame técnico

#4.1

09/28/1982

RPI 623

Carta-patente expirada

#21.1

06/13/1995

RPI 1280

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