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

PROCESSO PARA PRODUZIR CHAPAS DE ACO-SILICIO

ConcedidaInvention Patent

Application data

Number

PI7807424

Type

Invention Patent

Filing

11/11/1977

Publication

-

Progress at the INPI

  1. Filing11/11/77
  2. Publication
  3. Examination
  4. Allowance05/31/83
  5. Grant11/29/83
  6. Expired05/24/94

The letters patent expired on 05/24/1994: 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: 11/29/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

KAWASAKI STEEL CO

See this company's full portfolio

Inventors

I. T. (pessoa física)

M. K. (pessoa física)

N. H. (pessoa física)

S. H. (pessoa física)

S. T. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/29/1983

RPI 684

Notificação para pagamento de retribuição

#13.1

09/27/1983

RPI 675

Deferimento

#9.1

05/31/1983

RPI 658

15.0

08/10/1982

RPI 616

Exigência - art. 36 da LPI

#6.1

07/27/1982

RPI 614

6.2

12/22/1981

RPI 583

Carta-patente expirada

#21.1

05/24/1994

RPI 1225

Patent monitoring

Track this patent in real time.

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