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Official data from INPI

CONCENTRADOR CENTRÍFUGO

Em AnáliseInvention Patent

Application data

Number

PI8800090

Type

Invention Patent

Filing

01/12/1988

Publication

08/16/1988

Progress at the INPI

  1. Filing01/12/88
  2. Publication08/16/88
  3. Examination11/22/88
  4. Allowance05/11/93
  5. Grant10/26/93
  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: 11/22/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. M. (pessoa física)

CA

Inventors

S. M. (pessoa física)

CA

Technical data

IPC Classification

Priority claims

US

002.805 · 01/13/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

11/22/1988

RPI 944

Publicação do pedido de patente

#3.1

08/16/1988

RPI 930

Pedido de patente depositado

#2.1

08/09/1988

RPI 929

Pedido de patente depositado

#2.1

05/03/1988

RPI 915

Carta-patente expirada

#21.1

Patente extinta em 12/01/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

10/26/1993

RPI 1195

Deferimento

#9.1

05/11/1993

RPI 1171

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