US4498238A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transparent perspective tracing board
Assignee: Drawing Directions Inc
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Filing: 1982-09-30
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Granted: 1985-02-12
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Expires: 2002-09-30
Abstract
Abstract A transparent perspective hand-held tracing board is shown for use with a sheet of transparent drawing material. This board is formed of a rigid plastic or glass panel. A measured pattern is imprinted on the panel to assist in judging distance and relative angles. A supporting handle is mounted from one side edge of the panel for use by one hand in holding the panel in space so that an object being drawn at a distance may be sighted both through the drawing material and the board, and the angle and distance of the board may be adjusted to fit on the said measured patterns so the object may be traced on the drawing material.
Inventors
- 👤 James N. Vaughn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:34
CPC Classifications
B; B44; B44D; B44D3/00; B44D3/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
199 words
A transparent perspective hand-held tracing board adapted for use with a sheet of transparent drawing material that is to be attached to the front surface thereof, said tracing board comprising: a. a rigid panel of transparent material taken from the group consisting of plastic and glass: b. a measured pattern imprinted on the transparent panel to assist in judging distance and relative angles: c. a supporting handle secured adjacent one side edge and extending from the transparent panel, the handle providing mechanical advantage to assist in holding the panel steady for long periods of time, where the handle is for grasping by one hand in holding the panel in space at a predetermined angle and distance in front of a user, and an object at a distance may be sighted through the transparent panel and positioned within the measured pattern on the panel so that the said object can then be traced by the user's other hand with a drawing instrument that is capable of leaving a mark, wherein the said supporting handle is mounted on the lower edge of the transparent panel, and it includes a universal socket for providing angular adjustablity between the handle and the panel.
Claim 2
Dependent Claim
199 words
A transparent perspective hand-held tracing board adapted for use with a sheet of transparent drawing material that is to be attached to the front surface thereof, said tracing board comprising: a. a rigid panel of transparent material taken from the group consisting of plastic and glass: b. a measured pattern imprinted on the transparent panel to assist in judging distance and relative angles: c. a supporting handle secured adjacent one side edge and extending from the transparent panel, the handle providing mechanical advantage to assist in holding the panel steady for long periods of time, where the handle is for grasping by one hand in holding the panel in space at a predetermined angle and distance in front of a user, and an object at a distance may be sighted through the transparent panel and positioned within the measured pattern on the panel so that the said object can then be traced by the user's other hand with a drawing instrument that is capable of leaving a mark, wherein the said supporting handle is mounted on the lower edge of the transparent panel, and it includes a universal socket for providing angular adjustablity between the handle and the panel.
References Cited (Backward Citations)
US464359A
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US761033A
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FR857785A
Cited
US2487690A
Cited
FR971147A
Cited
FR971148A
Cited
US3479741A
Cited
US3834043A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-02-12 | 1988-08-13 | 1989-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-12 | 1992-08-13 | 1993-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-12 | 1996-08-13 | 1997-02-12 | $7700.00 | Window Closed / Lapsed |