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

APARELHO PARA ASPERGIR LÍQUIDO ELETROSTATICAMENTE EM UMA CORRENTE DE AR

Arquivada/ExtintaInvention PatentPCT · GB1987000609

Application data

Number

PI8707997

Type

Invention Patent

Filing

09/22/1987

Publication

08/07/1990

PCT

GB1987000609

Progress at the INPI

  1. Filing09/22/87
  2. Publication08/07/90
  3. Examination07/09/91
  4. Allowance09/15/92
  5. Grant04/27/93
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 07/29/2008. 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

A. G. (pessoa física)

E. W. (pessoa física)

M. G. (pessoa física)

GB

T. N. (pessoa física)

GB

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 22/09/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

04/27/1993

RPI 1169

Notificação para pagamento de retribuição

#13.1

02/02/1993

RPI 1157

Deferimento

#9.1

09/15/1992

RPI 1137

Solicitação de exame técnico

#4.1

07/09/1991

RPI 1075

Notificação de entrada na fase nacional - PCT

#1.3

08/07/1990

RPI 1027

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.