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Official data from INPI

ELETRODO E CELULA ELETROLITICA MONOPOLAR

ConcedidaInvention Patent

Application data

Number

PI7705131

Type

Invention Patent

Filing

08/04/1976

Publication

-

Progress at the INPI

  1. Filing08/04/76
  2. Publication
  3. Examination
  4. Allowance09/27/83
  5. Grant03/27/84
  6. Expired07/06/93

The letters patent expired on 07/06/1993: 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: 03/27/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ICI LTD

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Inventors

B. T. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/27/1984

RPI 701

Notificação para pagamento de retribuição

#13.1

01/17/1984

RPI 691

Deferimento

#9.1

09/27/1983

RPI 675

Exigência - art. 36 da LPI

#6.1

02/01/1983

RPI 641

Exigência - art. 36 da LPI

#6.1

08/10/1982

RPI 616

15.0

12/01/1981

RPI 580

Exigência - art. 36 da LPI

#6.1

11/17/1981

RPI 578

Carta-patente expirada

#21.1

07/06/1993

RPI 1179

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