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

DISPOSITIVO DE MISTURA E DISPERSÃO E REATOR DE CAMADA FLUIDIFICADA

PublicadaInvention Patent

Application data

Number

PI8900119

Type

Invention Patent

Filing

01/11/1989

Publication

09/05/1989

Progress at the INPI

  1. Filing01/11/89
  2. Publication09/05/89
  3. Examination10/22/91
  4. Allowance11/14/95
  5. Grant07/30/96
  6. Expired12/15/09

The letters patent expired on 12/15/2009: 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: 09/05/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Kashima Vinyl Chloride Monomer Co., Ltd

JP

Shin-Etsu Chemical Co., Ltd.

JP

Inventors

A. E. (pessoa física)

JP

F. M. (pessoa física)

JP

K. N. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

63-4604 · 01/12/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

09/05/1989

RPI 985

Pedido de patente depositado

#2.1

02/21/1989

RPI 957

Carta-patente expirada

#21.1

Patente extinta em 11/01/2004

12/15/2009

RPI 2032

Concessão da patente

#16.1

07/30/1996

RPI 1339

Notificação para pagamento de retribuição

#13.1

03/19/1996

RPI 1320

Deferimento

#9.1

11/14/1995

RPI 1302

Exigência - art. 36 da LPI

#6.1

01/31/1995

RPI 1261

Solicitação de exame técnico

#4.1

10/22/1991

RPI 1090

Patent monitoring

Track this patent in real time.

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