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Official data from INPI

PROCESSO PARA PELOTIZAR MINÉRIO DE METAL EM PARTÍCULAS, E, COMPOSIÇÃO AGLUTINANTE PARA USO NO MESMO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9000008

Type

Invention Patent

Filing

01/02/1990

Publication

10/09/1990

Progress at the INPI

  1. Filing01/02/90
  2. Publication10/09/90
  3. Examination10/06/92
  4. Allowance06/29/99
  5. Grant12/28/99
  6. Expired01/02/13

The letters patent expired on 01/02/2013: 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: 01/02/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Allied Colloids Limited

GB

Ciba Specialty Chemicals Water Treatments Limited

GB

See this company's full portfolio

Inventors

J. F. (pessoa física)

GB

P. F. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

8830383.9 · 12/30/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 02/01/2010

01/02/2013

RPI 2191

Alteração de nome deferida

#25.4

Alterado de: Allied Colloids Limited

09/18/2001

RPI 1602

Concessão da patente

#16.1

12/28/1999

RPI 1512

Republicação - classificação IPC

#15.11

Alterada de Int. Cl. 6 , C22B 1/242

06/29/1999

RPI 1486

Deferimento

#9.1

06/29/1999

RPI 1486

Exigência - art. 36 da LPI

#6.1

04/28/1998

RPI 1427

6.2

03/19/1996

RPI 1320

Solicitação de exame técnico

#4.1

10/06/1992

RPI 1140

Publicação do pedido de patente

#3.1

10/09/1990

RPI 1036

Pedido de patente depositado

#2.1

04/24/1990

RPI 1015

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