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Official data from INPI

Corpo de construção permeável a gases de material refratário.

Em ExigênciaInvention Patent

Application data

Number

PI8406349

Type

Invention Patent

Filing

12/11/1984

Publication

10/08/1985

Progress at the INPI

Under appeal
  1. Filing12/11/84
  2. Publication10/08/85
  3. Examination09/29/87
  4. Refused06/05/90
  5. Grant
  6. In force

The application was refused by the INPI on 06/05/1990. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 07/26/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Arbed S.A.

LU

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Inventors

F. K. (pessoa física)

J. L. (pessoa física)

R. H. (pessoa física)

Technical data

IPC Classification

Priority claims

LU

85 131 · 12/12/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

6.2

07/26/1988

RPI 927

Solicitação de exame técnico

#4.1

09/29/1987

RPI 884

Publicação do pedido de patente

#3.1

10/08/1985

RPI 781

Pedido de patente depositado

#2.1

02/26/1985

RPI 749

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: C21C 5/44; C04B 35/68.

03/20/2018

RPI 2463

Indeferimento

#9.2

06/05/1990

RPI 1021

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