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

DISPOSITIVO PARA SEPARACAO RAPIDA DOS ROLOS DE UMA CALANDRA

ConcedidaInvention Patent

Application data

Number

PI7904340

Type

Invention Patent

Filing

07/13/1978

Publication

-

Progress at the INPI

  1. Filing07/13/78
  2. Publication
  3. Examination
  4. Allowance07/19/83
  5. Grant01/31/84
  6. Expired04/18/95

The letters patent expired on 04/18/1995: 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: 01/31/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

KLEINEWEFERS GMBH

See this company's full portfolio

Inventors

P. J. (pessoa física)

W. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

01/31/1984

RPI 693

Notificação para pagamento de retribuição

#13.1

11/16/1983

RPI 682

Deferimento

#9.1

07/19/1983

RPI 665

Exigência - art. 36 da LPI

#6.1

10/19/1982

RPI 626

6.2

03/30/1982

RPI 597

Carta-patente expirada

#21.1

04/18/1995

RPI 1272

Patent monitoring

Track this patent in real time.

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