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Official data from INPI

PROCESSO DE OPERAÇÃO DE UMA SEPARADORA CENTRÍFUGA E SEPARADORA CENTRÍFUGA

PublicadaInvention Patent

Application data

Number

PI8803087

Type

Invention Patent

Filing

06/23/1988

Publication

01/10/1989

Progress at the INPI

  1. Filing06/23/88
  2. Publication01/10/89
  3. Examination01/29/91
  4. Allowance02/11/92
  5. Grant11/24/92
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 01/10/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Alfa-Laval Marine & Power Engineering AB

SE

Inventors

A. P. (pessoa física)

SE

Technical data

IPC Classification

Priority claims

SE

8702612-6 · 06/24/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

01/10/1989

RPI 951

Pedido de patente depositado

#2.1

11/16/1988

RPI 943

Carta-patente expirada

#21.1

Patente extinta em 23/06/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

11/24/1992

RPI 1147

Notificação para pagamento de retribuição

#13.1

06/30/1992

RPI 1126

Deferimento

#9.1

02/11/1992

RPI 1106

Solicitação de exame técnico

#4.1

01/29/1991

RPI 1052

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