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Official data from INPI

PROCESSO E APARELHO PARA A ALIMENTAÇÃO DE SUBSTÂNCIAS REAGENTES A UM FORNO DE FUNDIÇÃO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9100313

Type

Invention Patent

Filing

01/24/1991

Publication

10/22/1991

Progress at the INPI

  1. Filing01/24/91
  2. Publication10/22/91
  3. Examination12/21/93
  4. Allowance08/24/99
  5. Grant02/22/00
  6. Expired05/28/13

The letters patent expired on 05/28/2013: 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: 05/28/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Outokumpu Oy

FI

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Inventors

R. S. (pessoa física)

FI

Technical data

IPC Classification

Priority claims

FI

900409 · 01/25/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 24/01/2011

05/28/2013

RPI 2212

Concessão da patente

#16.1

02/22/2000

RPI 1520

Republicação - classificação IPC

#15.11

Alterada de Int. Cl. 6, C22B 15/00

08/24/1999

RPI 1494

Deferimento

#9.1

08/24/1999

RPI 1494

Conhecimento de parecer técnico

#7.1

11/26/1996

RPI 1356

6.2

04/02/1996

RPI 1322

Solicitação de exame técnico

#4.1

12/21/1993

RPI 1203

Publicação do pedido de patente

#3.1

10/22/1991

RPI 1090

Pedido de patente depositado

#2.1

08/06/1991

RPI 1079

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