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

MÉTODO PARA A DETECÇÃO DE CONTEÚDOS DE MATERIAL ESTRANHO EM GASES

Arquivada/ExtintaInvention PatentPCT · FI1987000075

Application data

Number

PI8707715

Type

Invention Patent

Filing

06/01/1987

Publication

08/15/1989

PCT

FI1987000075

Progress at the INPI

  1. Filing06/01/87
  2. Publication08/15/89
  3. Examination03/06/90
  4. Allowance06/08/93
  5. Grant04/26/94
  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: 08/15/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

P. P. (pessoa física)

FI

Inventors

P. P. (pessoa física)

FI

Technical data

IPC Classification

Priority claims

FI

862349 · 06/03/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação de entrada na fase nacional - PCT

#1.3

08/15/1989

RPI 982

Carta-patente expirada

#21.1

Patente extinta em 01/06/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

04/26/1994

RPI 1221

Notificação para pagamento de retribuição

#13.1

10/19/1993

RPI 1194

Deferimento

#9.1

06/08/1993

RPI 1175

Solicitação de exame técnico

#4.1

03/06/1990

RPI 1008

Patent monitoring

Track this patent in real time.

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