US3827739A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lever attachment for door latch-operating device
Assignee: Individual
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Filing: 1973-01-22
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Granted: 1974-08-06
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Expires: 1993-01-22
Abstract
Abstract Lever attachment for facilitating the opening of a door is releasably attached to a door knob. The door latch-operating mechanism is actuated merely by application of a downward pressure to the lever. The device comprises a lever portion, clamp portion, face portion, and a securing means for releasably connecting the attachment to door knobs of differing sizes and configurations.
Inventors
- 👤 L Overholser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:49
CPC Classifications
E; E05; E05B; E05B1/00; E05B1/0053; Y; Y10; Y10S; Y10S16/00; Y10S16/30; Y10S292/00; Y10S292/02; Y10T; Y10T292/00; Y10T292/82
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
An actuating attachment for door knobs of differing crosssectional shapes comprising an actuating member having a lever portion and an integral clamp portion having a cylindrical surface connected to the lever portion for releasably gripping door knobs of varied contour, a member depending from said clamp portion and spaced closely adjacent the lever portion, and means connecting said depending member and said lever portion together and readily detachably connecting said cylindrical surface to a door knob, wherein said clamp portion and said depending portion are interconnected by spaced apart ribs and wherein a surface of at least one of said ribs is angularly disposed and engaged with a portion of said connecting means.
Claim 2
Dependent Claim
113 words
An actuating attachment for door knobs of differing crosssectional shapes comprising an actuating member having a lever portion and an integral clamp portion having a cylindrical surface connected to the lever portion for releasably gripping door knobs of varied contour, a member depending from said clamp portion and spaced closely adjacent the lever portion, and means connecting said depending member and said lever portion together and readily detachably connecting said cylindrical surface to a door knob, wherein said clamp portion and said depending portion are interconnected by spaced apart ribs and wherein a surface of at least one of said ribs is angularly disposed and engaged with a portion of said connecting means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-05 | 1978-02-04 | 1978-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-05 | 1982-02-04 | 1982-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-05 | 1986-02-04 | 1986-08-06 | $7700.00 | Window Closed / Lapsed |