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Official data from INPI

PROCESSO DE PROTECAO COM MATERIAL RESISTENTE,COMPOSICAO PROTETORA DE MATERIAL RESISTENTE EM PARTICULAS SECAS E APARELHO PARA FORMACAO DE UMA IMAGEM RESISTENTE SOBRE UM PAINEL DE CIRCUITO

Em AnáliseInvention Patent

Application data

Number

PI7901808

Type

Invention Patent

Filing

03/02/1979

Publication

-

Progress at the INPI

  1. Filing03/02/79
  2. Publication
  3. Examination01/05/82
  4. Allowance08/11/87
  5. Grant
  6. Terminated10/03/89

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

Applicants and inventors

Applicants

DU PONT

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Inventors

No inventors listed.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

10/03/1989

RPI 989

Notificação para pagamento de retribuição

#13.1

12/01/1987

RPI 893

Deferimento

#9.1

08/11/1987

RPI 877

Republicação - classificação IPC

#15.11

04/26/1983

RPI 653

Exigência - art. 36 da LPI

#6.1

04/05/1983

RPI 650

Solicitação de exame técnico

#4.1

01/05/1982

RPI 585

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