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Official data from INPI

BLOCO REFRATÁRIO DENSO PARA INJEÇÃO DE GASES EM METAIS E LIGAS EM ESTADO DE FUSÃO

PublicadaInvention Patent

Application data

Number

PI8801100

Type

Invention Patent

Filing

03/11/1988

Publication

10/03/1989

Progress at the INPI

Under appeal
  1. Filing03/11/88
  2. Publication10/03/89
  3. Examination05/29/90
  4. Refused10/24/95
  5. Grant
  6. In force

The application was refused by the INPI on 10/24/1995. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 10/03/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Magnesita S/A

MG, BR

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Inventors

A. D. (pessoa física)

BR

A. L. (pessoa física)

BR

W. F. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

10/03/1989

RPI 989

Pedido de patente depositado

#2.1

07/12/1988

RPI 925

Indeferimento

#9.2

10/24/1995

RPI 1299

Republicação - classificação IPC

#15.11

04/25/1995

RPI 1273

Conhecimento de parecer técnico

#7.1

11/08/1994

RPI 1249

Solicitação de exame técnico

#4.1

05/29/1990

RPI 1020

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