(11) 98705-3426
TrademarkIQ iconTrademarkIQ
Back to search
Official data from INPI

PROCESSO PARA PRODUZIR UMA ALFA-OLEFINA LINEAR

Arquivada/ExtintaInvention Patent

Application data

Number

PI9104525

Type

Invention Patent

Filing

10/18/1991

Publication

06/09/1992

Progress at the INPI

  1. Filing10/18/91
  2. Publication06/09/92
  3. Examination07/06/93
  4. Allowance02/17/99
  5. Grant08/24/99
  6. Expired06/11/13

The letters patent expired on 06/11/2013: 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: 06/11/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Idemitsu Petrochemical Co. Ltd

JP

See this company's full portfolio

Inventors

T. T. (pessoa física)

JP

Y. S. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

279203/1990 · 10/19/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 18/10/2011

06/11/2013

RPI 2214

Concessão da patente

#16.1

08/24/1999

RPI 1494

Deferimento

#9.1

02/17/1999

RPI 1467

Solicitação de exame técnico

#4.1

07/06/1993

RPI 1179

Publicação do pedido de patente

#3.1

06/09/1992

RPI 1123

Pedido de patente depositado

#2.1

11/19/1991

RPI 1094

Patent monitoring

Track this patent in real time.

Receive alerts on INPI events, decisions, and expiry dates for your portfolio.