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

DRENO

Em AnáliseInvention Patent
Talk to an expert

Application data

Number

PI8202995

Type

Invention Patent

Filing

05/24/1982

Publication

12/27/1983
View on INPI

Progress at the INPI

  1. Filing05/24/82
  2. Publication12/27/83
  3. Examination03/07/84
  4. Allowance11/13/84
  5. Grant07/30/85
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 07/04/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Filtros Irlemp Racor Industria e Comercio Ltda

SP, BR

Filtros Irlemp Racor Indústria e Comércio Ltda

SP, BR

Inventors

E. B. (pessoa física)

BR

Technical data

IPC Classification

F16T 1/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.7

07/04/1989

RPI 976

20.4

06/06/1989

RPI 972

Concessão da patente

#16.1

07/30/1985

RPI 771

Notificação para pagamento de retribuição

#13.1

03/26/1985

RPI 753

Deferimento

#9.1

11/13/1984

RPI 734

Solicitação de exame técnico

#4.1

03/07/1984

RPI 698

Publicação do pedido de patente

#3.1

12/27/1983

RPI 688

Pedido de patente depositado

#2.1

07/13/1982

RPI 612

Carta-patente expirada

#21.1

Patente extinta em 24/05/97

07/01/2008

RPI 1956

20.7

03/08/1994

RPI 1214

20.7

03/01/1994

RPI 1213

20.4

02/16/1994

RPI 1211

Related

Patent monitoring

Track this patent in real time.

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