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

CONDUTOR DE ONDA DE CHOQUE DE BAIXA ENERGIA,E PROCESSO PARA A PRODUÇÃO DO MESMO

PublicadaInvention Patent

Application data

Number

PI8900474

Type

Invention Patent

Filing

02/02/1989

Publication

10/03/1989

Progress at the INPI

  1. Filing02/02/89
  2. Publication10/03/89
  3. Examination04/16/91
  4. Allowance02/14/95
  5. Grant08/29/95
  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: 10/03/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Imperial Chemical Industries Plc.

GB

See this company's full portfolio

Inventors

D. W. (pessoa física)

GB

D. W. (pessoa física)

GB

R. G. (pessoa física)

GB

R. S. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

8802329 · 02/03/1988

GB

8901092.0 · 01/19/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

10/03/1989

RPI 989

Pedido de patente depositado

#2.1

03/28/1989

RPI 962

Carta-patente expirada

#21.1

Patente extinta em 02/02/2004

12/15/2009

RPI 2032

Concessão da patente

#16.1

08/29/1995

RPI 1291

Deferimento

#9.1

02/14/1995

RPI 1263

Exigência - art. 36 da LPI

#6.1

10/25/1994

RPI 1247

Solicitação de exame técnico

#4.1

04/16/1991

RPI 1063

Related

From the same holder

Patent monitoring

Track this patent in real time.

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