Official data from INPI

SEPARADOR GRAVITACIONAL

Em AnáliseInvention Patent

Talk to an expert

Application data

Number

PI7707773

Type

Invention Patent

Filing

11/22/1976

Publication

View on INPI

Progress at the INPI

Filing11/22/76
Publication
Examination
Allowance02/16/82
Grant
Expired07/20/93

The letters patent expired on 07/20/1993: 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: 06/08/1982. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MINERAL DEPOSITS LTD

Inventors

No inventors listed.

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação para pagamento de retribuição

#13.1

06/08/1982

RPI 607

Deferimento

#9.1

02/16/1982

RPI 591

Carta-patente expirada

#21.1

07/20/1993

RPI 1181

From the same holder

CONJUNTO DE DIVISOR E PROCESSO DE REGULACAO RESPECTIVA PROCESSO E APARELHO PARA CONCENTRACAO GRAVIMETRICA A UMIDO DE MINERIO EM PARTICULAS CONCENTRADORES CONICOS COM COMBINACAO DE FLUXO PARCIAL E SERIE EM CASCATA

Patent monitoring

Track this patent in real time.

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