Official data from INPI

PROCESSO DE HIDROLISE DE SULFETO DE CALCIO

ArquivadaInvention Patent

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Application data

Number

PI8106761

Type

Invention Patent

Filing

10/20/1981

Publication

02/16/1982

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Progress at the INPI

Filing10/20/81
Publication02/16/82
Abandoned06/29/82
Allowance
Grant
In force

The application was abandoned: the INPI technical office action was not answered in time (art. 36 of the Brazilian IP Act). The technology is in the public domain in Brazil.

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Latest action published by the INPI: 07/30/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

NATRON CONSULTORIA E PROJETOS

Inventors

L. J. (pessoa física)

T. J. (pessoa física)

Technical data

IPC Classification

C01B 17/44 C01F 11/18

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 36 §1° da LPI

#11.2

07/30/1985

RPI 771

Exigência - art. 36 da LPI

#6.1

12/18/1984

RPI 739

Solicitação de exame técnico

#4.1

06/29/1982

RPI 610

Publicação antecipada

#3.2

02/16/1982

RPI 591

Pedido de patente depositado

#2.1

12/01/1981

RPI 580

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