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Official data from INPI

PROCESSO PARA RETIRADA DE TINTA DE PAPEL QUE LEVA PARTÍCULAS DE TINTA

ArquivadaInvention PatentPCT · GB1994002350

Application data

Number

PI9406216

Type

Invention Patent

Filing

10/26/1994

Publication

01/09/1996

PCT

GB1994002350

Progress at the INPI

  1. Filing10/26/94
  2. Publication01/09/96
  3. Abandoned
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: examination was not requested within the 36 months following the 10/26/1994 filing, the deadline set by art. 33 of the Brazilian IP Act. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 03/14/2000. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Allied Colloids Limited

GB

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Inventors

J. L. (pessoa física)

GB

J. S. (pessoa física)

GB

T. B. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

9322118.2 · 10/27/1993

Abstract

PATENTE DE INVERSÃO "PROCESSO PARA RETIRADA DE TINTA DE PAPEL QUE LEVA PARTÍCULAS DE TINTA". PAPEL RESIDUAL, ESPECIALMENTE RESTOS DE PAPEL OFÍCIO, INCLUINDO PAPEL IMPRESSO A LASER E/OU DE FOTOCOPIADORA, É SUBMETIDO A RETIRADA DE TINTA POR EMPASTAMENTO NA PRESENçA DE UM POLÍMERO ANIÔNICO SOLÚVEL EM ÁGUA, EM UM PH SUBSTANCIALMENTE NEUTRO, E ENTÃO FLOTAçÃO NA PRESENçA DE UM TENSO-ATIVO CATIÔNICO.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 33 da LPI

#11.1

03/14/2000

RPI 1523

Notificação de entrada na fase nacional - PCT

#1.3

01/09/1996

RPI 1310

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