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Official data from INPI

DISPOSITIF POUR LA DETERMINATION DU PROFIL DE LA SURFACE DULIT DE FUSION D'UN FOUR A CUVE ET PROCEDE DE SURVEILLANCE DE L'EVOLUTION DE CE PROFIL

Em AnáliseInvention Patent

Application data

Number

PI7700798

Type

Invention Patent

Filing

02/09/1976

Publication

-

Progress at the INPI

  1. Filing02/09/76
  2. Publication
  3. Examination
  4. Allowance
  5. Grant06/29/82
  6. Terminated01/19/88

The patent was granted on 06/29/1982 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: 01/19/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

W. P. (pessoa física)

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Inventors

M. P. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

01/19/1988

RPI 900

Concessão da patente

#16.1

06/29/1982

RPI 610

Notificação para pagamento de retribuição

#13.1

10/06/1981

RPI 572

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