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Official data from INPI

PROCESSO PARA DESTOXIFICAR REFUGOS DE USINAS DE AÇO QUE CONTEM ÓXIDOS DE FERRO E METAIS TÓXICOS

Em AnáliseInvention Patent

Application data

Number

PI8803016

Type

Invention Patent

Filing

06/20/1988

Publication

01/10/1989

Progress at the INPI

  1. Filing06/20/88
  2. Publication01/10/89
  3. Examination05/30/89
  4. Allowance06/27/95
  5. Grant02/27/96
  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: 05/30/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The International Metals Reclamation Company, Inc

US

The International Metals Reclamation Company, Inc.

US

Inventors

J. P. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

066.753 · 06/25/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

05/30/1989

RPI 971

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 20/06/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

02/27/1996

RPI 1317

Notificação para pagamento de retribuição

#13.1

11/07/1995

RPI 1301

Deferimento

#9.1

06/27/1995

RPI 1282

Republicação - classificação IPC

#15.11

05/02/1995

RPI 1274

Exigência - art. 36 da LPI

#6.1

10/04/1994

RPI 1244

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