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Official data from INPI

PROCESSO PARA PREPARAR METACROLEÍNA

ConcedidaInvention PatentPCT · US2018034271

Application data

Number

112019023830

Type

Invention Patent

Filing

05/24/2018

Publication

06/09/2020

PCT

US2018034271

Progress at the INPI

  1. Filing05/24/18
  2. Publication06/09/20
  3. Examination
  4. Allowance12/06/22
  5. Grant02/28/23
  6. In force05/24/38

The patent was granted on 02/28/2023 and is in force until 05/24/2038. Until then, no one may make, use or sell the invention in Brazil without the owner's authorisation.

Protection valid until:05/24/2038

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Latest action published by the INPI: 02/28/2023. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ROHM AND HAAS COMPANY

US

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Inventors

D. K. (pessoa física)

US

J. X. (pessoa física)

US

M. S. (pessoa física)

US

R. C. (pessoa física)

US

Technical data

Priority claims

US

62/510,984 · 05/25/2017

Abstract

É fornecido um processo para preparar metacroleína que maximiza a captura de metanol. Também são fornecidos processos para produzir ácido metacrílico e metil metacrilato.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

Prazo de Validade: 20 (vinte) anos contados a partir de 24/05/2018, observadas as condições legais

02/28/2023

RPI 2721

Deferimento

#9.1

12/06/2022

RPI 2709

Parecer de pré-exame

#6.23

07/19/2022

RPI 2689

Adição na publicação

#15.35

10/19/2021

RPI 2650

Notificação de entrada na fase nacional - PCT

#1.3

06/09/2020

RPI 2579

Alteração de dados cadastrais

#1.1

11/26/2019

RPI 2551

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