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Official data from INPI

RECUPERAÇÃO DE GRÃO ABRASIVO

ArquivadaInvention PatentPCT · US1996018391

Application data

Number

PI9612091

Type

Invention Patent

Filing

11/19/1996

Publication

05/11/1999

PCT

US1996018391

Progress at the INPI

  1. Filing11/19/96
  2. Publication05/11/99
  3. Examination
  4. Allowance09/23/03
  5. Abandoned
  6. In force

The application was allowed on 09/23/2003 but abandoned for failure to pay the grant fee (art. 38 of the Brazilian IP Act). The letters patent were never issued.

Talk to a specialist

Latest action published by the INPI: 03/23/2004. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Saint-Gobain Ceramics & Plastics, Inc.

US

Saint-Gobain/Norton Industrial Ceramics Corporation

US

See this company's full portfolio

Inventors

A. G. (pessoa física)

CA

A. K. (pessoa física)

US

R. T. (pessoa física)

CA

Technical data

IPC Classification

Priority claims

US

575655 · 12/20/1995

Abstract

Patente de Invenção: "RECUPERAÇÃO DE GRÃO ABRASIVO ALUMINOSO" . A invenção proporciona um processo para recuperar grãos abrasivos aluminosos a partir de materiais aglutinados vítreos fervendo-se o material em uma solução aquosa de uma base de metal alcalino.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 38 §2° da LPI

#11.4

03/23/2004

RPI 1733

Deferimento

#9.1

09/23/2003

RPI 1707

Alteração de nome deferida

#25.4

Alterado de: Saint-Gobain Industrial Ceramics, Inc

09/18/2001

RPI 1602

Notificação de entrada na fase nacional - PCT

#1.3

05/11/1999

RPI 1479

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