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Official data from INPI

PROCESSO DE PREPARACAO DE COPOLIMEROS ENXERTADOS DE SILICONES E ARTIGO POR ELE OBTIDO

Em AnáliseInvention Patent

Application data

Number

PI7801971

Type

Invention Patent

Filing

03/31/1977

Publication

-

Progress at the INPI

  1. Filing03/31/77
  2. Publication
  3. Examination
  4. Allowance09/04/84
  5. Grant03/26/85
  6. Terminated10/03/89

The patent was granted on 03/26/1985 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: 10/03/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

E. I. (pessoa física)

Inventors

W. G. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

10/03/1989

RPI 989

Concessão da patente

#16.1

03/26/1985

RPI 753

Notificação para pagamento de retribuição

#13.1

12/26/1984

RPI 740

Deferimento

#9.1

09/04/1984

RPI 724

Exigência - art. 36 da LPI

#6.1

12/20/1983

RPI 687

Exigência - art. 36 da LPI

#6.1

10/26/1982

RPI 627

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