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Official data from INPI

UM PROCESSO PARA O APURAMENTO DE UM MINÉRIO COMPORTANDO UM ÓXIDO METÁLICO OU UM COMPOSTO TIPO ÓXIDO

Em ExigênciaInvention Patent

Application data

Number

PI8401432

Type

Invention Patent

Filing

03/28/1984

Publication

11/06/1984

Progress at the INPI

Under appeal
  1. Filing03/28/84
  2. Publication11/06/84
  3. Examination12/02/86
  4. Refused09/24/91
  5. Grant
  6. In force

The application was refused by the INPI on 09/24/1991. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 11/08/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Albright & Wilson Limited

AU

See this company's full portfolio

Inventors

D. C. (pessoa física)

GB

J. C. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

UK 8308639 · 03/29/1983

GB

UK 8405133 · 02/28/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Exigência - art. 36 da LPI

#6.1

11/08/1988

RPI 942

Solicitação de exame técnico

#4.1

12/02/1986

RPI 841

Publicação do pedido de patente

#3.1

11/06/1984

RPI 733

Pedido de patente depositado

#2.1

06/12/1984

RPI 712

Indeferimento

#9.2

09/24/1991

RPI 1086

Conhecimento de parecer técnico

#7.1

01/22/1991

RPI 1051

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