CA2520308C - Systeme a ecriture effacable - Google Patents

Systeme a ecriture effacable Download PDF

Info

Publication number: CA2520308C
Authority: CA; Canada
Prior art keywords: flap; writing surface; cover; school; writing
Prior art date: 2004-10-12
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.): Expired - Fee Related

Application number

CA 2520308

Other languages

English (en)

Other versions

CA2520308A1 (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.)

2004-10-12

Filing date

2005-09-21

Publication date

2008-12-23

2004-10-12 Priority claimed from US10/962,724 external-priority patent/US20050175390A1/en

2005-09-21 Application filed by Meadwestvaco Corp filed Critical Meadwestvaco Corp

2006-04-12 Publication of CA2520308A1 publication Critical patent/CA2520308A1/fr

2008-12-23 Application granted granted Critical

2008-12-23 Publication of CA2520308C publication Critical patent/CA2520308C/fr

2025-09-21 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Links

239000000463 material Substances 0.000 claims description 17
239000011230 binding agent Substances 0.000 claims description 16
-1 polypropylene Polymers 0.000 claims description 6
239000004698 Polyethylene Substances 0.000 claims description 3
239000004743 Polypropylene Substances 0.000 claims description 3
229920000573 polyethylene Polymers 0.000 claims description 3
229920001155 polypropylene Polymers 0.000 claims description 3
230000003381 solubilizing effect Effects 0.000 claims description 2
230000000153 supplemental effect Effects 0.000 claims 1
239000002904 solvent Substances 0.000 abstract description 22
239000000976 ink Substances 0.000 description 42
239000003550 marker Substances 0.000 description 32
239000000758 substrate Substances 0.000 description 11
230000002745 absorbent Effects 0.000 description 8
239000002250 absorbent Substances 0.000 description 8
229920003023 plastic Polymers 0.000 description 5
239000004033 plastic Substances 0.000 description 5
239000003086 colorant Substances 0.000 description 4
BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 4
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
229920000642 polymer Polymers 0.000 description 3
238000000576 coating method Methods 0.000 description 2
239000000975 dye Substances 0.000 description 2
235000019441 ethanol Nutrition 0.000 description 2
238000012986 modification Methods 0.000 description 2
230000004048 modification Effects 0.000 description 2
239000003960 organic solvent Substances 0.000 description 2
239000000049 pigment Substances 0.000 description 2
239000011347 resin Substances 0.000 description 2
229920005989 resin Polymers 0.000 description 2
239000000344 soap Substances 0.000 description 2
230000003746 surface roughness Effects 0.000 description 2
229920000742 Cotton Polymers 0.000 description 1
239000001913 cellulose Substances 0.000 description 1
229920002678 cellulose Polymers 0.000 description 1
239000011248 coating agent Substances 0.000 description 1
238000004945 emulsification Methods 0.000 description 1
238000001704 evaporation Methods 0.000 description 1
239000004744 fabric Substances 0.000 description 1
239000006260 foam Substances 0.000 description 1
239000011521 glass Substances 0.000 description 1
239000007788 liquid Substances 0.000 description 1
239000002184 metal Substances 0.000 description 1
229920000307 polymer substrate Polymers 0.000 description 1
238000009736 wetting Methods 0.000 description 1
239000002023 wood Substances 0.000 description 1

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 CA2520308A1 (fr)	2006-04-12
CA2520308C true 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)

2005
- 2005-09-21 CA CA 2520308 patent/CA2520308C/fr not_active Expired - Fee Related
- 2005-10-07 MX MXPA05010850 patent/MXPA05010850A/es not_active Application Discontinuation

Also Published As

Publication number	Publication date
MXPA05010850A (es)	2007-08-08
CA2520308A1 (fr)	2006-04-12

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Legal Events

Date	Code	Title	Description
2005-09-21	EEER	Examination request
2020-11-02	MKLA	Lapsed	Effective date: 20200921