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Official data from INPI

DISPOSITIVO PARA TRATAMENTO A QUENTE DE MATERIAL DE GRANULACAO FINA E PROCESSO PARA FUNCIONAMENTO DESTE DISPOSITIVO

Em AnáliseInvention Patent

Application data

Number

PI7701629

Type

Invention Patent

Filing

03/17/1976

Publication

-

Progress at the INPI

  1. Filing03/17/76
  2. Publication
  3. Examination
  4. Allowance02/16/83
  5. Grant
  6. Terminated05/10/88

The patent was granted 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: 05/10/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

POLYSIUS AG

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Inventors

No inventors listed.

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

05/10/1988

RPI 916

Deferimento

#9.1

02/16/1983

RPI 643

Notificação para pagamento de retribuição

#13.1

06/01/1982

RPI 606

Deferimento

#9.1

01/26/1982

RPI 588

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