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Official data from INPI

COLETOR PARA A FLUTUACAO DOS MINERIOS E PROCESSO DE FLUTUACAO DE MINERAIS

Em AnáliseInvention Patent

Application data

Number

PI7904101

Type

Invention Patent

Filing

06/08/1979

Publication

06/22/1982

Progress at the INPI

  1. Filing06/08/79
  2. Publication06/22/82
  3. Examination01/26/82
  4. Allowance01/10/84
  5. Grant
  6. Expired04/04/95

The letters patent expired on 04/04/1995: 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: 05/02/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

E. A. (pessoa física)

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Inventors

L. E. (pessoa física)

T. P. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação para pagamento de retribuição

#13.1

05/02/1984

RPI 706

Deferimento

#9.1

01/10/1984

RPI 690

Exigência - art. 36 da LPI

#6.1

08/16/1983

RPI 669

Exigência - art. 36 da LPI

#6.1

02/08/1983

RPI 642

Publicação antecipada

#3.2

06/22/1982

RPI 609

Solicitação de exame técnico

#4.1

01/26/1982

RPI 588

Carta-patente expirada

#21.1

04/04/1995

RPI 1270

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