Official data from INPI

PROCESSO PARA LIMPAR MINÉRIOS E PRODUZIR SUSPENSÕES E EMULSÕES ESTÁVEIS, ESPECIALMENTE COMBUSTÍVEIS INCLUINDO CARVÃO, PETRÓLEO E ÁGUA.

Em AnáliseInvention Patent

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Application data

Number

PI8108998

Type

Invention Patent

Filing

03/02/1981

Publication

03/29/1983

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Progress at the INPI

Filing03/02/81
Publication03/29/83
Examination08/23/83
Refused10/11/88
Grant
In force

The application was refused on 10/11/1988 and the appeal did not change the decision. The invention was never patented and the technology is in the public domain in Brazil.

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Latest action published by the INPI: 10/11/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

E. C. (pessoa física)

Inventors

C. [. (pessoa física)

Technical data

IPC Classification

C10L 1/32

Priority claims

81/00259 · 03/02/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

111

10/11/1988

RPI 938

Petição de recurso

#12.2

03/15/1988

RPI 908

Indeferimento

#9.2

11/10/1987

RPI 890

Conhecimento de parecer técnico

#7.1

12/04/1984

RPI 737

Solicitação de exame técnico

#4.1

08/23/1983

RPI 670

Notificação de entrada na fase nacional - PCT

#1.3

03/29/1983

RPI 649

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