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Official data from INPI

MÉTODO PARA REFORÇAR OU REPARAR PARTES E COMPONENTES DE EQUIPAMENTO SUBMETIDOS A DESGASTE POR ABRASÃO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9104303

Type

Invention Patent

Filing

10/04/1991

Publication

06/09/1992

Progress at the INPI

  1. Filing10/04/91
  2. Publication06/09/92
  3. Examination11/17/92
  4. Allowance06/01/99
  5. Grant11/16/99
  6. Expired06/11/13

The letters patent expired on 06/11/2013: 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: 06/11/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Elkem a/s

NO

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Inventors

H. S. (pessoa física)

NO

K. J. (pessoa física)

NO

O. L. (pessoa física)

NO

Technical data

IPC Classification

Priority claims

NO

904348 · 10/08/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 04/10/2011

06/11/2013

RPI 2214

Concessão da patente

#16.1

11/16/1999

RPI 1506

Republicação - classificação IPC

#15.11

Alterada de Int. Cl 6 C08J 7/04

06/01/1999

RPI 1482

Deferimento

#9.1

06/01/1999

RPI 1482

Solicitação de exame técnico

#4.1

11/17/1992

RPI 1146

Publicação do pedido de patente

#3.1

06/09/1992

RPI 1123

Pedido de patente depositado

#2.1

11/12/1991

RPI 1093

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