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Official data from INPI

CELULA DE DIAFRAGMA

Concessão AnuladaInvention Patent

Application data

Number

PI7801308

Type

Invention Patent

Filing

03/04/1977

Publication

-

Progress at the INPI

  1. Filing03/04/77
  2. Publication
  3. Examination
  4. Allowance04/19/83
  5. Grant10/25/83
  6. Terminated09/18/90

The patent was granted on 10/25/1983 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: 01/10/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ICI LTD

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Inventors

B. T. (pessoa física)

D. B. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

16.3

01/10/1984

RPI 690

Concessão da patente

#16.1

10/25/1983

RPI 679

Notificação para pagamento de retribuição

#13.1

09/06/1983

RPI 672

Deferimento

#9.1

04/19/1983

RPI 652

Exigência - art. 36 da LPI

#6.1

07/06/1982

RPI 611

Exigência - art. 36 da LPI

#6.1

01/19/1982

RPI 587

Anuidade - prazo legal encerrado

#18.2

09/18/1990

RPI 1033

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