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Official data from INPI

DISPERSAO ESTAVEL EM SOLVENTE ORGANICO ANIDRICO NAO HIDROXOLICO;PROCESSO;VEICULO DE REVESTIMENTO;ARTIGO

ConcedidaInvention Patent

Application data

Number

PI8206138

Type

Invention Patent

Filing

10/26/1981

Publication

09/20/1983

Progress at the INPI

  1. Filing10/26/81
  2. Publication09/20/83
  3. Examination10/15/85
  4. Allowance11/01/88
  5. Grant08/29/89
  6. Terminated10/16/90

The patent was granted on 08/29/1989 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: 08/29/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DU PONT [US]

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Inventors

K. R. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/29/1989

RPI 984

Notificação para pagamento de retribuição

#13.1

02/21/1989

RPI 957

Deferimento

#9.1

11/01/1988

RPI 941

Exigência - art. 36 da LPI

#6.1

05/10/1988

RPI 916

6.2

01/13/1987

RPI 847

Solicitação de exame técnico

#4.1

10/15/1985

RPI 782

Publicação do pedido de patente

#3.1

09/20/1983

RPI 674

Pedido de patente depositado

#2.1

12/14/1982

RPI 634

Anuidade - prazo legal encerrado

#18.2

10/16/1990

RPI 1037

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