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Official data from INPI

DISPOSITIVO PARA SEPARAÇÃO DE ESCÓRIA E AÇO

Prazo de SigiloInvention Patent
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Application data

Number

PI8903117

Type

Invention Patent

Filing

06/26/1989

Publication

03/20/1990
View on INPI

Progress at the INPI

  1. Filing06/26/89
  2. Publication03/20/90
  3. Examination08/11/92
  4. Allowance
  5. Grant
  6. In force

Published on 03/20/1990, the application is awaiting technical examination at the INPI, which decides whether the invention meets the patentability requirements.

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Latest action published by the INPI: 08/22/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Voest-Alpine Stahl Donawitz Gesellschft m b H

AU

Inventors

L. P. (pessoa física)

O. K. (pessoa física)

AT

Technical data

IPC Classification

C21C 5/56C21C 7/00

Priority claims

AU

A 1667/88 · 06/27/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

08/22/1989

RPI 983

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: C21C 13/02; C21C 13/12; C21C 5/00.

03/27/2018

RPI 2464

Retificação

#15.3

08/16/1994

RPI 1237

Solicitação de exame técnico

#4.1

08/11/1992

RPI 1132

Publicação do pedido de patente

#3.1

03/20/1990

RPI 1010

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