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Official data from INPI

PROCESSO PARA A FUNDIÇÃO DE AGLOMERADOS QUE CONTEM OXIDO DE METAL E AGENTE REDUTOR

Em AnáliseInvention Patent

Application data

Number

PI8600899

Type

Invention Patent

Filing

03/03/1986

Publication

11/11/1986

Progress at the INPI

  1. Filing03/03/86
  2. Publication11/11/86
  3. Examination08/25/87
  4. Allowance09/17/91
  5. Grant06/30/92
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 08/25/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The International Metals Reclamation Company, Inc.

US

Inventors

J. P. (pessoa física)

US

J. M. (pessoa física)

US

Technical data

Priority claims

US

707.796 · 03/04/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

08/25/1987

RPI 879

Publicação do pedido de patente

#3.1

11/11/1986

RPI 838

Pedido de patente depositado

#2.1

08/12/1986

RPI 825

Carta-patente expirada

#21.1

Patente extinta em 03/03/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

06/30/1992

RPI 1126

Deferimento

#9.1

09/17/1991

RPI 1085

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