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

PROCESSO PARA PRODUÇÃO DE POLICARBONATOS

Arquivada/ExtintaInvention Patent
Talk to an expert

Application data

Number

PI8904803

Type

Invention Patent

Filing

09/22/1989

Publication

05/01/1990
View on INPI

Progress at the INPI

  1. Filing09/22/89
  2. Publication05/01/90
  3. Examination06/23/92
  4. Allowance04/02/96
  5. Grant08/26/97
  6. Expired05/21/13

The letters patent expired on 05/21/2013: 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: 05/21/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

GE Plastics Japan Ltd

JP

Inventors

T. S. (pessoa física)

JP

T. S. (pessoa física)

JP

Technical data

IPC Classification

C08G 18/44

Priority claims

JP

238428/88 · 09/22/1988

JP

238429/88 · 09/22/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 22/09/2009

05/21/2013

RPI 2211

Concessão da patente

#16.1

08/26/1997

RPI 1395

Republicação - classificação IPC

#15.11

02/18/1997

RPI 1368

Notificação para pagamento de retribuição

#13.1

02/04/1997

RPI 1366

Deferimento

#9.1

04/02/1996

RPI 1322

Exigência - art. 36 da LPI

#6.1

07/18/1995

RPI 1285

Solicitação de exame técnico

#4.1

06/23/1992

RPI 1125

Publicação do pedido de patente

#3.1

05/01/1990

RPI 1016

Pedido de patente depositado

#2.1

03/20/1990

RPI 1010

Related

Patent monitoring

Track this patent in real time.

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