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Official data from INPI

PROCESSO PARA PREPARAR UM CATALISADOR PARA DESIDROGENAÇÃO CALCINADO E PROCESSO PARA DESIDROGENAR UM COMPOSTO ALQUIL AROMÁTICO

Arquivada/ExtintaInvention PatentPCT · US1994004714

Application data

Number

PI9406676

Type

Invention Patent

Filing

04/29/1994

Publication

01/23/1996

PCT

US1994004714

Progress at the INPI

  1. Filing04/29/94
  2. Publication01/23/96
  3. Examination
  4. Allowance04/11/00
  5. Grant09/19/00
  6. Expired06/30/15

The letters patent expired on 06/30/2015: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 06/30/2015. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Styron Europe GmbH

CH

Styron LLC

US

The Dow Chemical Company

US

See this company's full portfolio

Inventors

A. S. (pessoa física)

US

F. S. (pessoa física)

US

P. D. (pessoa física)

US

R. M. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

08/058.192 · 05/04/1993

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 29/04/2014

06/30/2015

RPI 2321

Transferência deferida

#25.1

Transferido de: Styron LLC

01/31/2012

RPI 2143

Transferência deferida

#25.1

Transferido de: The Dow Chemical Company

01/17/2012

RPI 2141

Concessão da patente

#16.1

09/19/2000

RPI 1550

Deferimento

#9.1

04/11/2000

RPI 1527

Exigência - art. 36 da LPI

#6.1

08/31/1999

RPI 1495

Notificação de entrada na fase nacional - PCT

#1.3

01/23/1996

RPI 1312

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