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Official data from INPI

SEPARADOR CENTRIFUGO

ConcedidaInvention Patent

Application data

Number

PI7909025

Type

Invention Patent

Filing

03/01/1979

Publication

-

Progress at the INPI

  1. Filing03/01/79
  2. Publication
  3. Examination10/19/82
  4. Allowance12/20/83
  5. Grant06/26/84
  6. Expired05/09/95

The letters patent expired on 05/09/1995: 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

GLACIER METAL CO LTD

Inventors

K. J. (pessoa física)

Technical data

IPC Classification

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

04/17/1984

RPI 704

Deferimento

#9.1

12/20/1983

RPI 687

Exigência - art. 36 da LPI

#6.1

06/28/1983

RPI 662

Solicitação de exame técnico

#4.1

10/19/1982

RPI 626

Carta-patente expirada

#21.1

05/09/1995

RPI 1275

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