Patent US3513695A successfully refreshed from Google Patents.
Patent US4137863A successfully refreshed from Google Patents.
US4137863A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reading instrument
Assignee: Individual
•
Filing: 1977-04-12
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Granted: 1979-02-06
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Expires: 1997-04-12
Abstract
Abstract A reading instrument for magnifying certain chosen printed material on a page or sheet of paper and for visually isolating the chosen material from other, adjacent printed material, the instrument including an opaque plate that is provided with a slot, an elongated magnifying lens attached to the plate in alignment with the slot, a permanent magnet spaced from the lens and attached to the plate and a flat lamina of a ferrous material that is positioned under the printed page so as to inhibit the plate from sliding along or falling off of the page due to its magnetic attraction to the lamina.
Inventors
- 👤 Russell E. Anglin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:27
CPC Classifications
G; G09; G09B; G09B17/00; G09B17/02; G02; G02B; G02B27/00; G02B27/02; G02B27/021; Y; Y10; Y10S; Y10S281/00; Y10S281/01
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
244 words
A reading instrument for magnifying certain, selected printed material on the upper surface of a sheet of paper and for visually isolating said certain material from other, adjacent printed material on said upper surface, the instrument comprising: a magnifying assembly including an elongated, plano-convex lens means formed from a half round rod of a lens quality substance, a flat, non-ferrous, opaque plate provided with an elongated slot, means for attaching said lens means to said plate in alignment with said slot so that any printed material seen through said slot is magnified by said lens means, and a permanent magnet spaced from said lens means and attached to said plate and serving as a handle for said plate; and a flat lamina of a ferrous material which is operationally disposed close enough to said magnifying assembly so as to be magnetically attracted to said magnet to a substantial degree; whereby when said lamina is positioned beneath a lower surface of said paper and said magnifying assembly is positioned against said upper surface, the assembly is inhibited from sliding by the frictional force between said assembly and said paper caused by the weight of said assembly and by the magnetic attraction between said assembly and said lamina, and where certain printed material on said upper surface may be magnified and isolated from other printed material on said upper surface by grasping said magnet and positioning said slot and said lens over said certain, selected material.
Claim 2
Dependent Claim
244 words
A reading instrument for magnifying certain, selected printed material on the upper surface of a sheet of paper and for visually isolating said certain material from other, adjacent printed material on said upper surface, the instrument comprising: a magnifying assembly including an elongated, plano-convex lens means formed from a half round rod of a lens quality substance, a flat, non-ferrous, opaque plate provided with an elongated slot, means for attaching said lens means to said plate in alignment with said slot so that any printed material seen through said slot is magnified by said lens means, and a permanent magnet spaced from said lens means and attached to said plate and serving as a handle for said plate; and a flat lamina of a ferrous material which is operationally disposed close enough to said magnifying assembly so as to be magnetically attracted to said magnet to a substantial degree; whereby when said lamina is positioned beneath a lower surface of said paper and said magnifying assembly is positioned against said upper surface, the assembly is inhibited from sliding by the frictional force between said assembly and said paper caused by the weight of said assembly and by the magnetic attraction between said assembly and said lamina, and where certain printed material on said upper surface may be magnified and isolated from other printed material on said upper surface by grasping said magnet and positioning said slot and said lens over said certain, selected material.
Claim 3
Dependent Claim
20 words
A reading instrument as recited in claim 1 wherein said lens means is a half round rod of acrylic plastic.
Claim 4
Dependent Claim
19 words
A reading instrument as recited in claim 1 wherein said elongated slot is configured to receive said lens means.
Claim 5
Dependent Claim
36 words
A reading instrument as recited in claims 1 wherein said means for attaching said lens means to said plate includes an adhesive disposed between a surface of said lens means and a surface of said plate.
Claim 6
Dependent Claim
21 words
A reading instrument as recited in claim 1 further comprising a sheet of paper attached to a surface of said lamina.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-02-05 | 1982-08-07 | 1983-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-05 | 1986-08-07 | 1987-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-05 | 1990-08-07 | 1991-02-06 | $7700.00 | Window Closed / Lapsed |