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Official data from INPI

Separador centrífugo.

ConcedidaInvention Patent

Application data

Number

PI7805191

Type

Invention Patent

Filing

08/11/1978

Publication

-

Progress at the INPI

  1. Filing08/11/78
  2. Publication
  3. Examination
  4. Allowance10/13/82
  5. Grant05/31/83
  6. Expired05/03/94

The letters patent expired on 05/03/1994: 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: 05/31/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Alfa-Laval AB

SE

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Inventors

L. K. (pessoa física)

S. K. (pessoa física)

W. T. (pessoa física)

Technical data

IPC Classification

Priority claims

SE

7709131-2 · 08/12/1977

SE

7802889-1 · 03/14/1978

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/31/1983

RPI 658

Notificação para pagamento de retribuição

#13.1

02/16/1983

RPI 643

Deferimento

#9.1

10/13/1982

RPI 625

Exigência - art. 36 da LPI

#6.1

02/02/1982

RPI 589

Carta-patente expirada

#21.1

05/03/1994

RPI 1222

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