Official data from INPI

PROCESSO DE TRATAMENTO DE LIGAS DE FERROMANGANES

IndeferidaInvention Patent

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Application data

Number

PI8305482

Type

Invention Patent

Filing

10/04/1982

Publication

05/15/1984

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Progress at the INPI

Under appeal

Filing10/04/82
Publication05/15/84
Examination06/03/86
Refused06/20/89
Grant
In force

The application was refused by the INPI on 06/20/1989. The invention was never patented.

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Latest action published by the INPI: 06/20/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MINERAL TECH COUNCIL [ZA]

Inventors

C. R. (pessoa física)

S. E. (pessoa física)

Technical data

IPC Classification

C22C 35/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

06/20/1989

RPI 974

Conhecimento de parecer técnico

#7.1

11/16/1988

RPI 943

6.2

03/04/1987

RPI 854

Solicitação de exame técnico

#4.1

06/03/1986

RPI 815

Publicação do pedido de patente

#3.1

05/15/1984

RPI 708

Pedido de patente depositado

#2.1

12/13/1983

RPI 686

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