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

SEPARADOR PARA MATERIAIS EM GRÃOS.

ConcedidaInvention Patent

Application data

Number

PI8004483

Type

Invention Patent

Filing

07/18/1980

Publication

-

Progress at the INPI

  1. Filing07/18/80
  2. Publication
  3. Examination11/23/82
  4. Allowance12/13/83
  5. Grant06/26/84
  6. Expired09/19/95

The letters patent expired on 09/19/1995: 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: 06/26/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Buhler-Miag GMBH.

DE

Inventors

E. W. (pessoa física)

S. K. (pessoa física)

Technical data

IPC Classification

Priority claims

DE

P 29 29 672.8 · 07/21/1979

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

04/10/1984

RPI 703

Deferimento

#9.1

12/13/1983

RPI 686

Solicitação de exame técnico

#4.1

11/23/1982

RPI 631

Carta-patente expirada

#21.1

09/19/1995

RPI 1294

Patent monitoring

Track this patent in real time.

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