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

SEM TITULO

ConcedidaInvention Patent
Talk to an expert

Application data

Number

PI8107825

Type

Invention Patent

Filing

11/01/1981

Publication

07/06/1982
View on INPI

Progress at the INPI

  1. Filing11/01/81
  2. Publication07/06/82
  3. Examination09/14/82
  4. Allowance12/17/85
  5. Grant04/29/86
  6. Terminated03/19/96

The patent was granted on 04/29/1986 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 04/29/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Institut de Recherches de La Sidérurgie Française -IRSID.

FR

See this company's full portfolio

Inventors

G. C. (pessoa física)

L. M. (pessoa física)

Technical data

IPC Classification

C21C 5/42

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/29/1986

RPI 810

Notificação para pagamento de retribuição

#13.1

04/22/1986

RPI 809

Deferimento

#9.1

12/17/1985

RPI 791

Republicação - classificação IPC

#15.11

01/15/1985

RPI 743

Exigência - art. 36 da LPI

#6.1

10/23/1984

RPI 731

Solicitação de exame técnico

#4.1

09/14/1982

RPI 621

Publicação antecipada

#3.2

07/06/1982

RPI 611

Pedido de patente depositado

#2.1

01/12/1982

RPI 586

Anuidade - prazo legal encerrado

#18.2

03/19/1996

RPI 1320

Patent monitoring

Track this patent in real time.

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