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

LIGAS PESADAS DE TUNGSTÊNIO-NÍQUEL-FERRO DE CARACTERÍSTICAS MECÂNICAS MUITO ELEVADAS E PROCESSO DE FABRICAÇÃO DAS MESMAS

PublicadaInvention Patent

Application data

Number

PI8805467

Type

Invention Patent

Filing

10/21/1988

Publication

07/04/1989

Progress at the INPI

  1. Filing10/21/88
  2. Publication07/04/89
  3. Examination04/16/91
  4. Allowance11/14/95
  5. Grant07/30/96
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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

C. B. (pessoa física)

FR

Inventors

G. N. (pessoa física)

FR

Technical data

Priority claims

FR

87 15315 · 10/23/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

07/04/1989

RPI 976

Pedido de patente depositado

#2.1

03/14/1989

RPI 960

Carta-patente expirada

#21.1

Patente extinta em 21/10/2003

09/02/2008

RPI 1965

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

Solicitação de exame técnico

#4.1

04/16/1991

RPI 1063

Patent monitoring

Track this patent in real time.

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