CA2520308A1 - Systeme a ecriture effacable - Google Patents

Systeme a ecriture effacable Download PDF

Info

Publication number
CA2520308A1
CA2520308A1 CA 2520308 CA2520308A CA2520308A1 CA 2520308 A1 CA2520308 A1 CA 2520308A1 CA 2520308 CA2520308 CA 2520308 CA 2520308 A CA2520308 A CA 2520308A CA 2520308 A1 CA2520308 A1 CA 2520308A1
Authority
CA
Canada
Prior art keywords
writing system
dispense
erasable writing
permanent ink
marking portion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA 2520308
Other languages
English (en)
Other versions
CA2520308C (fr
Inventor
Stephen D. Wehmeyer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Acco Brands Corp
Original Assignee
Meadwestvaco Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US10/962,724 external-priority patent/US20050175390A1/en
Application filed by Meadwestvaco Corp filed Critical Meadwestvaco Corp
Publication of CA2520308A1 publication Critical patent/CA2520308A1/fr
Application granted granted Critical
Publication of CA2520308C publication Critical patent/CA2520308C/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Pens And Brushes (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
CA 2520308 2004-10-12 2005-09-21 Systeme a ecriture effacable Expired - Fee Related CA2520308C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/962,724 2004-10-12
US10/962,724 US20050175390A1 (en) 2004-01-20 2004-10-12 Erasable writing system

Publications (2)

Publication Number Publication Date
CA2520308A1 true CA2520308A1 (fr) 2006-04-12
CA2520308C CA2520308C (fr) 2008-12-23

Family

ID=36177442

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2520308 Expired - Fee Related CA2520308C (fr) 2004-10-12 2005-09-21 Systeme a ecriture effacable

Country Status (2)

Country Link
CA (1) CA2520308C (fr)
MX (1) MXPA05010850A (fr)

Also Published As

Publication number Publication date
MXPA05010850A (es) 2007-08-08
CA2520308C (fr) 2008-12-23

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20200921