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Official data from INPI

FIBRA OCA DE ACETATO DE CELULOSE,E PROCESSO PARA SUA FABRICACAO

Concessão AnuladaInvention Patent

Application data

Number

PI7804325

Type

Invention Patent

Filing

07/05/1977

Publication

-

Progress at the INPI

  1. Filing07/05/77
  2. Publication
  3. Examination
  4. Allowance04/19/83
  5. Grant11/29/83
  6. Terminated01/28/92

The patent was granted on 11/29/1983 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 02/14/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

CORDIS DOW CORP

Inventors

K. M. (pessoa física)

M. R. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

16.3

02/14/1984

RPI 695

Concessão da patente

#16.1

11/29/1983

RPI 684

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

05/18/1982

RPI 604

6.2

12/01/1981

RPI 580

Anuidade - prazo legal encerrado

#18.2

01/28/1992

RPI 1104

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