US4364176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drawing appliance
Assignee: Hasbro Inc
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Filing: 1981-02-10
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Granted: 1982-12-21
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Expires: 2001-02-10
Abstract
Abstract A drawing appliance is disclosed of the type that includes a screen to which a powdered substance adheres, a stylus being used to trace lines through the powdered substance, and a mechanism being provided that enables the stylus to be withdrawn from engagement with the screen so that movement of the stylus to another location on the screen does not result in unnecessary tracing of lines on the screen.
Inventors
- 👤 Andre J. Cassagnes
- 👤 Irving C. Dudley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:58
CPC Classifications
B; B43; B43L; B43L1/00; B43L1/12; B43L13/00; B43L13/20; B43L13/201
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
139 words
In a drawing appliance comprising a housing in which a sealed enclosure is located, the outermost portion of said enclosure being defined by a translucent screen, a powdery material located in said enclosure and having adhering characteristics for adherence to said screen when placed into contact therewith, a movable stylus located in said enclosure, a control member, a linkage system interconnecting said control member to said stylus for moving said stylus across said screen to remove the powdery material therefrom and to thereby trace a line thereon, characterized in that said control member is depressible, one end of said linkage system is pivotally mounted on said housing, the other end of said linkage system is connected to said control member and is depressible therewith to pivot said linkage system and thereby remove said stylus from engagement with said screen.
Claim 2
Dependent Claim
139 words
In a drawing appliance comprising a housing in which a sealed enclosure is located, the outermost portion of said enclosure being defined by a translucent screen, a powdery material located in said enclosure and having adhering characteristics for adherence to said screen when placed into contact therewith, a movable stylus located in said enclosure, a control member, a linkage system interconnecting said control member to said stylus for moving said stylus across said screen to remove the powdery material therefrom and to thereby trace a line thereon, characterized in that said control member is depressible, one end of said linkage system is pivotally mounted on said housing, the other end of said linkage system is connected to said control member and is depressible therewith to pivot said linkage system and thereby remove said stylus from engagement with said screen.
Claim 3
Dependent Claim
26 words
The appliance of claim 1, further comprising spring means biasing said control member to a nondepressed position wherein said stylus is in engagement with said screen.
References Cited (Backward Citations)
US4135303A
Cited
US4251920A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-12-20 | 1986-06-21 | 1986-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-12-20 | 1990-06-21 | 1990-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-12-20 | 1994-06-21 | 1994-12-21 | $7700.00 | Window Closed / Lapsed |