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Official data from INPI

PROCESSO E APRAELHO PARA SEPARAR PARTICULAS INSUFICIENTEMENTE RESFRIADAS DE METAL ESPONJOSO A PARTIR DE UMA MASSA DE PARTICULAS DE METAL ESPONJOSO

Em AnáliseInvention Patent

Application data

Number

PI8002442

Type

Invention Patent

Filing

04/23/1979

Publication

-

Progress at the INPI

  1. Filing04/23/79
  2. Publication
  3. Examination
  4. Allowance08/07/84
  5. Grant07/30/85
  6. Terminated09/26/89

The patent was granted on 07/30/1985 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: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

HYLSA SA

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Inventors

C. L. (pessoa física)

F. M. (pessoa física)

P. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

09/26/1989

RPI 988

Concessão anulada

#16.2

10/01/1985

RPI 780

Concessão da patente

#16.1

07/30/1985

RPI 771

Concessão da patente

#16.1

02/26/1985

RPI 749

Notificação para pagamento de retribuição

#13.1

12/11/1984

RPI 738

Deferimento

#9.1

08/07/1984

RPI 720

Republicação - classificação IPC

#15.11

03/13/1984

RPI 699

Exigência - art. 36 da LPI

#6.1

11/08/1983

RPI 681

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