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Official data from INPI

MÉTODO PARA ESTABILIZAR COMPOSTOS DE NITRO LÍQUIDO CONTRA DESCOLORAÇÃO

ConcedidaInvention PatentPCT · US2009039903 Official document available

Application data

Number

PI0907283

Type

Invention Patent

Filing

04/08/2009

Publication

07/21/2015

PCT

US2009039903

Patent grant document available

We have the complete official document for this filing, as published by INPI.

Access the document

Progress at the INPI

  1. Filing04/08/09
  2. Publication07/21/15
  3. Examination
  4. Allowance08/08/17
  5. Grant11/28/17
  6. In force04/08/29

The patent was granted on 11/28/2017 and is in force until 04/08/2029. Until then, no one may make, use or sell the invention in Brazil without the owner's authorisation.

Protection valid until:04/08/2029

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Latest action published by the INPI: 11/28/2017. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ANGUS CHEMICAL COMPANY

US

DOW GLOBAL TECHNOLOGIES INC.

US

DOW GLOBAL TECHNOLOGIES LLC

US

See this company's full portfolio

Inventors

D. T. (pessoa física)

US

E. L. (pessoa física)

US

J. G. (pessoa física)

US

L. W. (pessoa física)

US

M. M. (pessoa física)

US

R. J. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

61/045,381 · 04/16/2008

Abstract

MÃTODO PARA ESTABILIZAR COMPOSTOS DE NITRO LÃQUIDO CONTRA DESCOLORAÃÃO. Método para estabilizar compostos de nitro contra descoloração. O método compreende reagir compostos de nitro contendo impurezas de formação de cor com ácido nítrico, neutralizar e lavar o produto, e destilar do mesmo compostos de nitro purificados.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/28/2017

RPI 2447

9.1.4

11/07/2017

RPI 2444

Deferimento

#9.1

08/08/2017

RPI 2431

Exigência - art. 36 da LPI

#6.1

05/02/2017

RPI 2417

Transferência deferida

#25.1

11/08/2016

RPI 2392

Alteração de nome deferida

#25.4

10/25/2016

RPI 2390

Notificação de entrada na fase nacional - PCT

#1.3

07/21/2015

RPI 2324

Alteração de dados cadastrais

#1.1

08/30/2011

RPI 2121

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