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Official data from INPI

DISPERSOES DE FLOCOS DE ALUMINIO

ConcedidaInvention Patent

Application data

Number

PI8108945

Type

Invention Patent

Filing

12/31/1980

Publication

12/14/1982

Progress at the INPI

  1. Filing12/31/80
  2. Publication12/14/82
  3. Examination09/11/84
  4. Allowance09/06/88
  5. Grant05/30/89
  6. Terminated11/08/94

The patent was granted on 05/30/1989 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: 05/30/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DU PONT [US]

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Inventors

H. T. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/30/1989

RPI 971

Notificação para pagamento de retribuição

#13.1

12/27/1988

RPI 949

Deferimento

#9.1

09/06/1988

RPI 933

Exigência - art. 36 da LPI

#6.1

09/01/1987

RPI 880

Conhecimento de parecer técnico

#7.1

04/23/1985

RPI 757

Solicitação de exame técnico

#4.1

09/11/1984

RPI 725

Notificação de entrada na fase nacional - PCT

#1.3

12/14/1982

RPI 634

Anuidade - prazo legal encerrado

#18.2

11/08/1994

RPI 1249

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