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Official data from INPI

PROCESSO DE SINTERIZACAO DE PELOTAS CRUAS, PARTICULARMENTE PELOTAS DE MINERIO

ConcedidaInvention Patent

Application data

Number

PI8000699

Type

Invention Patent

Filing

02/06/1979

Publication

-

Progress at the INPI

  1. Filing02/06/79
  2. Publication
  3. Examination11/23/82
  4. Allowance05/22/84
  5. Grant11/27/84
  6. Expired05/16/95

The letters patent expired on 05/16/1995: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 11/27/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

LUOSSAVAARA KIIRUNAVAARA AB

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Inventors

B. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/27/1984

RPI 736

Notificação para pagamento de retribuição

#13.1

09/04/1984

RPI 724

Deferimento

#9.1

05/22/1984

RPI 709

Exigência - art. 36 da LPI

#6.1

11/01/1983

RPI 680

Solicitação de exame técnico

#4.1

11/23/1982

RPI 631

Carta-patente expirada

#21.1

05/16/1995

RPI 1276

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