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Official data from INPI

PROCESSO E DISPOSITIVO PARA SEPARACAO DE UMA MISTURA

ConcedidaInvention Patent

Application data

Number

PI7706718

Type

Invention Patent

Filing

02/04/1977

Publication

-

Progress at the INPI

  1. Filing02/04/77
  2. Publication
  3. Examination
  4. Allowance08/17/82
  5. Grant03/29/83
  6. Terminated08/28/90

The patent was granted on 03/29/1983 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 03/29/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BALLAST NEDAM GROEP NV

SKIMOVEX BV

Inventors

M. C. (pessoa física)

P. M. (pessoa física)

W. T. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/29/1983

RPI 649

Notificação para pagamento de retribuição

#13.1

12/28/1982

RPI 636

Deferimento

#9.1

08/17/1982

RPI 617

Exigência - art. 36 da LPI

#6.1

12/29/1981

RPI 584

Anuidade - prazo legal encerrado

#18.2

08/28/1990

RPI 1030

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