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Official data from INPI

AGLUTINACAO COM FOSFATO DE ESPINELIOS REATIVOS PARA UTILIZACAO COMO MATERIAIS REFRATARIOS INCORPORANDO MGO COMO ACELERADOR DA CONSOLIDACAO

Em ExigênciaInvention Patent

Application data

Number

PI8504991

Type

Invention Patent

Filing

10/09/1984

Publication

07/29/1986

Progress at the INPI

Under appeal
  1. Filing10/09/84
  2. Publication07/29/86
  3. Examination09/20/88
  4. Refused07/16/91
  5. Grant
  6. In force

The application was refused by the INPI on 07/16/1991. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 06/13/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DOW CHEMICAL CO [US]

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Inventors

C. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

6.2

06/13/1989

RPI 973

Solicitação de exame técnico

#4.1

09/20/1988

RPI 935

Publicação do pedido de patente

#3.1

07/29/1986

RPI 823

Pedido de patente depositado

#2.1

12/17/1985

RPI 791

Indeferimento

#9.2

07/16/1991

RPI 1076

Conhecimento de parecer técnico

#7.1

10/30/1990

RPI 1039

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