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Official data from INPI

PÓ DE FERRO-ESPONJA

Arquivada/ExtintaInvention PatentPCT · SE1994000076

Application data

Number

PI9406582

Type

Invention Patent

Filing

02/02/1994

Publication

01/02/1996

PCT

SE1994000076

Progress at the INPI

  1. Filing02/02/94
  2. Publication01/02/96
  3. Examination
  4. Allowance11/23/99
  5. Grant06/13/00
  6. Expired06/30/15

The letters patent expired on 06/30/2015: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 06/30/2015. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Hoganas AB

SE

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Inventors

E. V. (pessoa física)

SE

F. T. (pessoa física)

DE

L. L. (pessoa física)

SE

M. O. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

SE

93 00457-0 · 02/11/1993

Abstract

A invenção refere-se a uma composição e a um método para produzir um pó finamente moído de ferro-esponja e material de fase dura.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 02/02/2014

06/30/2015

RPI 2321

Concessão da patente

#16.1

06/13/2000

RPI 1536

Deferimento

#9.1

11/23/1999

RPI 1507

Notificação de entrada na fase nacional - PCT

#1.3

01/02/1996

RPI 1309

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