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Official data from INPI

ARTIGO COMPOSITO DE METAL EM PO E FILTRADO

ConcedidaInvention Patent

Application data

Number

PI8108588

Type

Invention Patent

Filing

05/12/1980

Publication

04/06/1982

Progress at the INPI

  1. Filing05/12/80
  2. Publication04/06/82
  3. Examination01/17/84
  4. Allowance05/17/88
  5. Grant11/29/88
  6. Terminated11/08/94

The patent was granted on 11/29/1988 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: 11/29/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MINNESOTA MINING & MFG [US]

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Inventors

D. R. (pessoa física)

G. N. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/29/1988

RPI 945

Notificação para pagamento de retribuição

#13.1

09/06/1988

RPI 933

Deferimento

#9.1

05/17/1988

RPI 917

Exigência - art. 36 da LPI

#6.1

08/26/1986

RPI 827

Conhecimento de parecer técnico

#7.1

10/16/1984

RPI 730

Solicitação de exame técnico

#4.1

01/17/1984

RPI 691

Notificação de entrada na fase nacional - PCT

#1.3

04/06/1982

RPI 598

Anuidade - prazo legal encerrado

#18.2

11/08/1994

RPI 1249

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