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Official data from INPI

DISPERSAO AQUOSA DE POLIMERO E COMPOSICAO AQUOSA DE REVESTIMENTO

ConcedidaInvention Patent

Application data

Number

PI8002565

Type

Invention Patent

Filing

04/27/1979

Publication

-

Progress at the INPI

  1. Filing04/27/79
  2. Publication
  3. Examination01/04/83
  4. Allowance02/09/88
  5. Grant07/26/88
  6. Terminated07/26/94

The patent was granted on 07/26/1988 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: 07/26/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DOW CHEMICAL CO

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Inventors

D. L. (pessoa física)

H. L. (pessoa física)

M. J. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/26/1988

RPI 927

Deferimento

#9.1

02/09/1988

RPI 903

Conhecimento de parecer técnico

#7.1

10/04/1983

RPI 676

Solicitação de exame técnico

#4.1

01/04/1983

RPI 637

Anuidade - prazo legal encerrado

#18.2

07/26/1994

RPI 1234

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