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Official data from INPI

PROCESSO PARA A PRODUCAO DE GASES PARA A REDUCAO DE MINERIOS OXIDICOS,ESPECIALMENTE DE MINERIOS DE FERRO

Em AnáliseInvention Patent

Application data

Number

PI7603894

Type

Invention Patent

Filing

06/18/1975

Publication

-

Progress at the INPI

  1. Filing06/18/75
  2. Publication
  3. Examination
  4. Allowance
  5. Grant02/24/82
  6. Terminated05/21/85

The patent was granted on 02/24/1982 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 05/21/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. C. (pessoa física)

Inventors

T. K. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

05/21/1985

RPI 761

Cessão de direito de exploração

#22.1

11/13/1984

RPI 734

Concessão da patente

#16.1

02/24/1982

RPI 592

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