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Official data from INPI

PROCESSO E DISPOSITIVO PARA A SEPARAÇÃO DE PARTÍCULAS NUM FLUÍDO NOTADAMENTE PARA PURIFICAÇÃO DE SUSPENSÕES DE FABRICAÇÃO DE PAPEL.

ConcedidaInvention Patent

Application data

Number

PI8101386

Type

Invention Patent

Filing

03/10/1981

Publication

-

Progress at the INPI

  1. Filing03/10/81
  2. Publication
  3. Examination08/23/83
  4. Allowance08/21/84
  5. Grant03/26/85
  6. Expired09/24/96

The letters patent expired on 09/24/1996: 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: 03/26/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Centre Technique De L'Industrie Des Papiers, Cartons Et Celluloses

FR

Inventors

A. J. (pessoa física)

Technical data

IPC Classification

Priority claims

FR

80/07 244 · 03/21/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/26/1985

RPI 753

Notificação para pagamento de retribuição

#13.1

12/11/1984

RPI 738

Deferimento

#9.1

08/21/1984

RPI 722

Exigência - art. 36 da LPI

#6.1

03/20/1984

RPI 700

Solicitação de exame técnico

#4.1

08/23/1983

RPI 670

Carta-patente expirada

#21.1

09/24/1996

RPI 1347

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