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Official data from INPI

PROCESSO PARA A PRODUÇÃO DE POLICARBONATOS RAMIFICADOS

Arquivada/ExtintaInvention PatentPCT · JP1989000916

Application data

Number

PI8907080

Type

Invention Patent

Filing

09/06/1989

Publication

01/08/1991

PCT

JP1989000916

Progress at the INPI

  1. Filing09/06/89
  2. Publication01/08/91
  3. Examination07/16/91
  4. Allowance03/26/96
  5. Grant03/25/97
  6. Expired12/29/09

The letters patent expired on 12/29/2009: 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: 12/29/2009. 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

M. O. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

63-221285 · 09/06/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 06/09/2004

12/29/2009

RPI 2034

Concessão da patente

#16.1

03/25/1997

RPI 1373

Deferimento

#9.1

03/26/1996

RPI 1321

Exigência - art. 36 da LPI

#6.1

07/18/1995

RPI 1285

Exigência - art. 36 da LPI

#6.1

01/31/1995

RPI 1261

Solicitação de exame técnico

#4.1

07/16/1991

RPI 1076

Notificação de entrada na fase nacional - PCT

#1.3

01/08/1991

RPI 1049

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