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

PROCESSO PARA EFETUAR A TROCA DE CILINDROS EM UM LAMINADOR E DISAPOSITIVO TROCADOR DE CILINDROS.

ConcedidaInvention Patent

Application data

Number

PI7805469

Type

Invention Patent

Filing

08/23/1978

Publication

-

Progress at the INPI

  1. Filing08/23/78
  2. Publication
  3. Examination
  4. Allowance12/20/83
  5. Grant06/26/84
  6. Expired05/03/94

The letters patent expired on 05/03/1994: 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: 06/26/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Hitachi, Ltd.

JP

See this company's full portfolio

Inventors

M. O. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

101661/77 · 08/26/1977

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/26/1984

RPI 714

Notificação para pagamento de retribuição

#13.1

04/17/1984

RPI 704

Deferimento

#9.1

12/20/1983

RPI 687

Exigência - art. 36 da LPI

#6.1

03/15/1983

RPI 647

6.2

12/22/1981

RPI 583

Carta-patente expirada

#21.1

05/03/1994

RPI 1222

Related

From the same holder

Patent monitoring

Track this patent in real time.

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