Official data from INPI

PROCESSO PARA A PURIFICAÇÃO DE ÁCIDO FLUORÍDRICO ANIDRO

Em AnáliseInvention Patent

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Application data

Number

PI9104330

Type

Invention Patent

Filing

10/08/1991

Publication

06/09/1992

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Progress at the INPI

Filing10/08/91
Publication06/09/92
Examination07/05/94
Allowance
Grant
In force

Published on 06/09/1992, the application is awaiting technical examination at the INPI, which decides whether the invention meets the patentability requirements.

Latest action published by the INPI: 09/23/1997. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

B. A. (pessoa física)

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Inventors

A. B. (pessoa física)

M. K. (pessoa física)

Technical data

IPC Classification

C01B 7/19 C25B 1/00 C25B 11/04

Priority claims

P 40 31 967.9 · 10/09/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Retificação

#15.3

09/23/1997

RPI 1399

Solicitação de exame técnico

#4.1

07/05/1994

RPI 1231

Publicação do pedido de patente

#3.1

06/09/1992

RPI 1123

Pedido de patente depositado

#2.1

11/12/1991

RPI 1093

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