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Official data from INPI

PROCESSO E EQUIPAMENTO RETENTOR DE ESCÓRIA NOS FORNOS E RECIPIENTES SIDERÚRGICOS E METALÚRGICOS.

PublicadaInvention Patent

Application data

Number

PI8603831

Type

Invention Patent

Filing

08/06/1986

Publication

05/17/1988

Progress at the INPI

Under appeal
  1. Filing08/06/86
  2. Publication05/17/88
  3. Examination10/30/90
  4. Refused09/06/94
  5. Grant
  6. In force

The application was refused by the INPI on 09/06/1994. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 05/17/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Instituto de Pesquisas Tecnológicas de São Paulo S/A - IPT

SP, BR

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Inventors

M. J. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

05/17/1988

RPI 917

Pedido de patente depositado

#2.1

01/06/1987

RPI 846

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. A classificação IPC anterior era B23K 1/04.

03/27/2018

RPI 2464

Republicação - classificação IPC

#15.11

04/04/1995

RPI 1270

Indeferimento

#9.2

09/06/1994

RPI 1240

Conhecimento de parecer técnico

#7.1

11/16/1993

RPI 1198

15.15

07/13/1993

RPI 1180

Solicitação de exame técnico

#4.1

10/30/1990

RPI 1039

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