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Official data from INPI

PROCESSO DE PRODUCAO DE PRODUTO METALIZADO PROCESSO PARA PRODUCAO DE GRANULOS METALIZADOS E APARELHO PARA REDUCAO DE OXIDO DE METAL

Em AnáliseInvention Patent

Application data

Number

PI7603082

Type

Invention Patent

Filing

11/14/1975

Publication

-

Progress at the INPI

  1. Filing11/14/75
  2. Publication
  3. Examination
  4. Allowance
  5. Grant02/24/82
  6. Terminated09/18/90

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.

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Latest action published by the INPI: 09/23/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MIDREX CORP

See this company's full portfolio

Inventors

B. D. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

09/23/1986

RPI 831

Concessão da patente

#16.1

02/24/1982

RPI 592

Anuidade - prazo legal encerrado

#18.2

09/18/1990

RPI 1033

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