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Official data from INPI

COMPOSICAO PARA REVESTIMENTO E PROCESSO PARA PREPARAR A LACA SOB FORMA DE DISPERSAO ACRILICA DE ALTO TEOR DE SOLIDOS

ConcedidaInvention Patent

Application data

Number

PI8103492

Type

Invention Patent

Filing

06/06/1980

Publication

02/24/1982

Progress at the INPI

  1. Filing06/06/80
  2. Publication02/24/82
  3. Examination12/27/83
  4. Allowance12/29/87
  5. Grant06/28/88
  6. Terminated09/25/90

The patent was granted on 06/28/1988 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: 06/28/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DU PONT

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Inventors

B. W. (pessoa física)

G. G. (pessoa física)

G. B. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/28/1988

RPI 923

Notificação para pagamento de retribuição

#13.1

05/10/1988

RPI 916

Deferimento

#9.1

12/29/1987

RPI 897

Exigência - art. 36 da LPI

#6.1

05/05/1987

RPI 863

Solicitação de exame técnico

#4.1

12/27/1983

RPI 688

Publicação do pedido de patente

#3.1

02/24/1982

RPI 592

Anuidade - prazo legal encerrado

#18.2

09/25/1990

RPI 1034

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