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Official data from INPI

PROCESSO PARA PRODUZIR 1,4-DIOXANO

Prazo de SigiloInvention Patent

Application data

Number

PI8804211

Type

Invention Patent

Filing

08/12/1988

Publication

03/27/1990

Progress at the INPI

  1. Filing08/12/88
  2. Publication03/27/90
  3. Abandoned03/03/92
  4. Allowance
  5. Grant
  6. 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: 01/17/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Dow Chemical Company

US

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Inventors

A. H. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

01/17/1989

RPI 952

Arquivamento - Art. 36 §1° da LPI

#11.2

07/25/1995

RPI 1286

Exigência - art. 36 da LPI

#6.1

09/20/1994

RPI 1242

Solicitação de exame técnico

#4.1

03/03/1992

RPI 1109

Publicação do pedido de patente

#3.1

03/27/1990

RPI 1011

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