Official data from INPI

UNIDADE DE CARBONIZACAO E BRIQUETAGEM

IndeferidaInvention Patent

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Application data

Number

PI8100991

Type

Invention Patent

Filing

02/17/1981

Publication

10/20/1981

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Progress at the INPI

Under appeal

Filing02/17/81
Publication10/20/81
Examination01/19/82
Refused04/02/85
Grant
In force

The application was refused by the INPI on 04/02/1985. The invention was never patented.

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Latest action published by the INPI: 04/02/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

N. L. (pessoa física)

Inventors

N. L. (pessoa física)

Technical data

IPC Classification

C10B 53/00 C10L 5/44

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

04/02/1985

RPI 754

Conhecimento de parecer técnico

#7.1

07/31/1984

RPI 719

Pedido de certificado de adição de invenção

#5.1

06/15/1982

RPI 608

Solicitação de exame técnico

#4.1

01/19/1982

RPI 587

Publicação antecipada

#3.2

10/20/1981

RPI 574

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