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Official data from INPI

COMPOSICAO DE ELASTOMERO DE SILICONA E PROCESSO PARA SUA PREPARACAO

Em AnáliseInvention Patent

Application data

Number

PI7902792

Type

Invention Patent

Filing

05/08/1978

Publication

-

Progress at the INPI

  1. Filing05/08/78
  2. Publication
  3. Examination
  4. Allowance04/03/84
  5. Grant10/30/84
  6. Terminated06/14/88

The patent was granted on 10/30/1984 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: 06/14/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

D. C. (pessoa física)

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Inventors

S. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

06/14/1988

RPI 921

Concessão da patente

#16.1

10/30/1984

RPI 732

Notificação para pagamento de retribuição

#13.1

08/07/1984

RPI 720

Deferimento

#9.1

04/03/1984

RPI 702

Exigência - art. 36 da LPI

#6.1

10/18/1983

RPI 678

6.2

03/16/1982

RPI 595

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