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Official data from INPI

"USO DE MICROFIBRA DE SÍLICA AMORFA NATURAL".

ArquivadaInvention Patent
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Application data

Number

PI9905155

Type

Invention Patent

Filing

11/05/1999

Publication

06/19/2001
View on INPI

Progress at the INPI

  1. Filing11/05/99
  2. Publication06/19/01
  3. Examination
  4. Allowance07/14/09
  5. Abandoned
  6. In force

The application was allowed on 07/14/2009 but abandoned for failure to pay the grant fee (art. 38 of the Brazilian IP Act). The letters patent were never issued.

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Latest action published by the INPI: 06/15/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Magnesita Refratários S.A.

MG, BR

Magnesita S/A.

MG, BR

RPAR Holding S.A.

MG, BR

See this company's full portfolio

Inventors

A. M. (pessoa física)

BR

W. S. (pessoa física)

BR

Technical data

IPC Classification

C08J 5/06C08K 3/36

Abstract

"USO DE MICROFIBRA DE SÍLICA AMORFA NATURAL" Microfibra de sílica amorfa natural (MFSA) sendo uma fibra de sílica amorfa natural, na forma de agulhas ocas, com diâmetro na faixa de 7 a 15 mícrons (tipicamente 12 µm) e comprimento variando de 20 a 500 mícrons (tipicamente 200 mícrons), proveniente da concentração de espongilito e usada como reforço para polímeros.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 38 §2° da LPI

#11.4

06/15/2010

RPI 2058

Deferimento

#9.1

07/14/2009

RPI 2010

Alteração de nome deferida

#25.4

Alterado de: RPAR Holding S.A.

03/10/2009

RPI 1992

Transferência deferida

#25.1

Transferido por Incorporação de: Magnesita S/A.

02/25/2009

RPI 1990

Publicação do pedido de patente

#3.1

06/19/2001

RPI 1589

Pedido de patente depositado

#2.1

11/21/2000

RPI 1559

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