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

PROCESSO PARA A PRODUÇÃO DE POLICARBONATO RAMIFICADO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9001204

Type

Invention Patent

Filing

03/14/1990

Publication

03/19/1991

Progress at the INPI

  1. Filing03/14/90
  2. Publication03/19/91
  3. Examination08/13/91
  4. Allowance04/27/99
  5. Grant11/03/99
  6. Expired01/08/13

The letters patent expired on 01/08/2013: 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: 01/08/2013. 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

E. T. (pessoa física)

JP

S. K. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

59635/1989 · 03/14/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 14/03/2010

01/08/2013

RPI 2192

Concessão da patente

#16.1

11/03/1999

RPI 1504

Deferimento

#9.1

04/27/1999

RPI 1477

Exigência - art. 36 da LPI

#6.1

09/16/1997

RPI 1398

Exigência - art. 36 da LPI

#6.1

11/12/1996

RPI 1354

Solicitação de exame técnico

#4.1

08/13/1991

RPI 1080

Publicação do pedido de patente

#3.1

03/19/1991

RPI 1059

Pedido de patente depositado

#2.1

07/24/1990

RPI 1025

Patent monitoring

Track this patent in real time.

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