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Official data from INPI

PROCESSO PARA PREPARAR UM POLICARBONATO DIOL;PROCESSO PARA PREPARACAO DE UMA POLIURETANA TRANSPARENTE ABSORVENTE DE ENERGIA;E LAMINADO DE VIDRO DE SEGURANCA

Em AnáliseInvention Patent

Application data

Number

PI7701057

Type

Invention Patent

Filing

04/28/1976

Publication

-

Progress at the INPI

  1. Filing04/28/76
  2. Publication
  3. Examination
  4. Allowance03/01/83
  5. Grant07/26/83
  6. Terminated12/08/87

The patent was granted on 07/26/1983 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: 12/08/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PPG INDUSTRIES INC

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Inventors

A. V. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

12/08/1987

RPI 894

Concessão da patente

#16.1

07/26/1983

RPI 666

Notificação para pagamento de retribuição

#13.1

06/21/1983

RPI 661

Deferimento

#9.1

03/01/1983

RPI 645

Exigência - art. 36 da LPI

#6.1

05/18/1982

RPI 604

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