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Official data from INPI

PROCESSO PARA AQUECIMENTO INDUTIVO DE UMA PROJECAO PERIFERICA DE ANEIS DE MANCAIS DE ROLAMENTOS BEM COMO INDUTOR PARA EXECUCAO DO MESMO

Em AnáliseInvention Patent

Application data

Number

PI7804674

Type

Invention Patent

Filing

08/03/1977

Publication

-

Progress at the INPI

  1. Filing08/03/77
  2. Publication
  3. Examination
  4. Allowance03/02/82
  5. Grant
  6. Expired11/30/93

The letters patent expired on 11/30/1993: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 06/22/1982. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

HOESCH WERKE AG

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Inventors

No inventors listed.

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação para pagamento de retribuição

#13.1

06/22/1982

RPI 609

Deferimento

#9.1

03/02/1982

RPI 593

Carta-patente expirada

#21.1

11/30/1993

RPI 1200

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