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Official data from INPI

APARELHO PARA SEPARAR SAIBRO DE UMA CORRENTE LÍQUIDA

Em AnáliseInvention Patent

Application data

Number

PI8802496

Type

Invention Patent

Filing

05/20/1988

Publication

12/20/1988

Progress at the INPI

  1. Filing05/20/88
  2. Publication12/20/88
  3. Examination07/04/89
  4. Allowance06/14/94
  5. Grant01/31/95
  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: 07/04/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Smith & loveless, Inc

US

Smith & Loveless, Inc

US

Inventors

F. W. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

053.078 · 05/21/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

07/04/1989

RPI 976

Publicação do pedido de patente

#3.1

12/20/1988

RPI 948

Pedido de patente depositado

#2.1

10/18/1988

RPI 939

Carta-patente expirada

#21.1

Patente extinta em 20/05/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

01/31/1995

RPI 1261

Notificação para pagamento de retribuição

#13.1

10/18/1994

RPI 1246

Deferimento

#9.1

06/14/1994

RPI 1228

Exigência - art. 36 da LPI

#6.1

11/16/1993

RPI 1198

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