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Official data from INPI

FORNO PARA REDUCAO DE MINERIOS

ConcedidaInvention Patent
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Application data

Number

PI7800841

Type

Invention Patent

Filing

02/13/1978

Publication

-
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Progress at the INPI

  1. Filing02/13/78
  2. Publication
  3. Examination
  4. Allowance06/19/84
  5. Grant03/26/85
  6. Terminated01/28/92

The patent was granted on 03/26/1985 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: 03/26/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MINERACAO VALE PARANAIBA SA VA

Inventors

C. C. (pessoa física)

M. P. (pessoa física)

Technical data

IPC Classification

C22B 5/12

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/26/1985

RPI 753

Notificação para pagamento de retribuição

#13.1

10/23/1984

RPI 731

Deferimento

#9.1

06/19/1984

RPI 713

8.1

12/20/1983

RPI 687

Exigência - art. 36 da LPI

#6.1

05/31/1983

RPI 658

Exigência - art. 36 da LPI

#6.1

08/17/1982

RPI 617

Conhecimento de parecer técnico

#7.1

01/26/1982

RPI 588

Anuidade - prazo legal encerrado

#18.2

01/28/1992

RPI 1104

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