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US5897265A Expired / Lapsed US ⏱️ 0.0 years remaining

Ink Eraser

Assignee: Individual
•
Filing: 1997-05-06
•
Granted: 1999-04-27
•
Expires: 2017-05-06
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Abstract

Abstract An ink eraser including an eraser housing defining a housing chamber and a nib opening; a first fibrous wick container positioned within the housing chamber; a first section of fibrous wicking material positioned within the fibrous wick container; a supply of erasing agent within the fibrous wick container, the erasing agent including a mixture of vinegar and an organic bleach; and a delivery nib having a wick contacting portion, a central portion and a delivery portion, the wick contacting portion being positioned within the fibrous wick container in contact with the first section of fibrous wicking, the central portion being disposed through the nib opening, the delivery portion extending exteriorly of the eraser housing. In a preferred embodiment the eraser housing further defines a fill opening and the ink eraser further includes a sealing cap. The sealing cap preferably defines a recharging port that is sealable by a reusable sealing device such as a screw in cap.

Inventors

  • 👤 Caroline Wilson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 18:29
CPC Classifications
B; B43; B43K; B43K27/00; B43K27/08; B43K8/00; B43K8/02; B43L; B43L19/00; B43L19/0018; B43M; B43M11/00; B43M11/06; B43M11/08

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 168 words
An eraser comprising: an eraser housing defining a housing chamber and a nib opening; a first fibrous wick container positioned within said housing chamber; a first section of fibrous wicking material positioned within said fibrous wick container; a second section of fibrous wicking material positioned within said fibrous wick container such that a bleach disk compartment is formed between said first section of fibrous wicking material and said second section of fibrous wicking material; a solid molded bleach disk positioned within said bleach disk compartment, said solid molded bleach disk having a plurality of percolation holes formed entirely therethrough; a supply of vinegar saturating said first and said second sections of fibrous wicking material; and a delivery nib having a wick contacting portion, a central portion and a delivery portion, said wick contacting portion being positioned within said fibrous wick container in contact with said first section of fibrous wicking, said central portion being disposed through said nib opening, said delivery portion extending exteriorly of said eraser housing.
Claim 2
Dependent Claim 168 words
An eraser comprising: an eraser housing defining a housing chamber and a nib opening; a first fibrous wick container positioned within said housing chamber; a first section of fibrous wicking material positioned within said fibrous wick container; a second section of fibrous wicking material positioned within said fibrous wick container such that a bleach disk compartment is formed between said first section of fibrous wicking material and said second section of fibrous wicking material; a solid molded bleach disk positioned within said bleach disk compartment, said solid molded bleach disk having a plurality of percolation holes formed entirely therethrough; a supply of vinegar saturating said first and said second sections of fibrous wicking material; and a delivery nib having a wick contacting portion, a central portion and a delivery portion, said wick contacting portion being positioned within said fibrous wick container in contact with said first section of fibrous wicking, said central portion being disposed through said nib opening, said delivery portion extending exteriorly of said eraser housing.

References Cited (Backward Citations)

US4076427A Cited
US3941488A Cited
US5324131A Cited
US4932802A Cited
US5362167A Cited
US5342136A Cited
US5306092A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2002-04-26 2002-10-26 2003-04-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2006-04-26 2006-10-26 2007-04-27 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2010-04-26 2010-10-26 2011-04-27 $7700.00 Window Closed / Lapsed

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