Official data from INPI

METODO E DISPOSITIVO PARA AQUECIMENTO DE CAMARA DE ALTO FORNO

Em AnáliseInvention Patent

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Application data

Number

PI7701059

Type

Invention Patent

Filing

09/22/1976

Publication

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Progress at the INPI

Filing09/22/76
Publication
Examination
Allowance07/13/82
Grant11/30/82
Terminated12/08/87

The patent was granted on 11/30/1982 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: 12/08/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BLOOM ENG CO INC

Inventors

H. J. (pessoa física)

Technical data

IPC Classification

C21B 7/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

12/08/1987

RPI 894

Cessão de direito de exploração

#22.1

11/26/1985

RPI 788

Concessão da patente

#16.1

11/30/1982

RPI 632

Deferimento

#9.1

07/13/1982

RPI 612

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