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Official data from INPI

COMPOSICAO DE REVESTIMENTO COM ALTO TEOR DE SOLIDOS,ARTIGO,SUBSTRATO METALICO E DISPERSANTE DE PIGMENTOS DE UM POLIMERO

ConcedidaInvention Patent

Application data

Number

PI8004346

Type

Invention Patent

Filing

07/18/1979

Publication

-

Progress at the INPI

  1. Filing07/18/79
  2. Publication
  3. Examination03/15/83
  4. Allowance10/04/88
  5. Grant07/25/89
  6. Terminated07/26/94

The patent was granted on 07/25/1989 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: 07/25/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DU PONT

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Inventors

A. A. (pessoa física)

K. R. (pessoa física)

M. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/25/1989

RPI 979

Notificação para pagamento de retribuição

#13.1

01/24/1989

RPI 953

Deferimento

#9.1

10/04/1988

RPI 937

Exigência - art. 36 da LPI

#6.1

09/29/1987

RPI 884

Conhecimento de parecer técnico

#7.1

10/11/1983

RPI 677

Solicitação de exame técnico

#4.1

03/15/1983

RPI 647

Anuidade - prazo legal encerrado

#18.2

07/26/1994

RPI 1234

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