Patent US4745527A successfully refreshed from Google Patents.
US4745527A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Illuminated door lock scratch guard
Assignee: ALLISON CORP
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Filing: 1987-01-09
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Granted: 1988-05-17
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Expires: 2007-01-09
Abstract
Abstract An illuminated door lock scratch guard formed of a base plate having an aperture. The base plate is mounted onto the door with the aperture in registration with the door lock. An illumination circuit is provided within the base plate, and upon pressure onto the base plate, the illumination circuit casts a light onto the door lock.
Inventors
- 👤 Joseph L. Belverio, Jr.
- 👤 David Dennison
- 👤 Gregory Ball
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:44
CPC Classifications
E; E05; E05B; E05B17/00; E05B17/10; Y; Y10; Y10S; Y10S362/00; Y10S362/80
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
115 words
An illuminated door lock scratch guard, comprising a base plate means having an aperture therein, said plate means mounting onto a door with the aperture in registration with the door lock; illumination means associated with the plate means for casting illumination onto the door lock, a cavity formed in said plate means for accommodating said illumination means, said cavity including a channel approaching said aperture, wherein said illumination means further includes a pressure type switch within said plate means and a battery in said plate means, whereby pressing onto the plate means turns on said illumination means, and said scratch guard being formed as an assembly being mounted onto the door as a separate unit.
Claim 2
Dependent Claim
115 words
An illuminated door lock scratch guard, comprising a base plate means having an aperture therein, said plate means mounting onto a door with the aperture in registration with the door lock; illumination means associated with the plate means for casting illumination onto the door lock, a cavity formed in said plate means for accommodating said illumination means, said cavity including a channel approaching said aperture, wherein said illumination means further includes a pressure type switch within said plate means and a battery in said plate means, whereby pressing onto the plate means turns on said illumination means, and said scratch guard being formed as an assembly being mounted onto the door as a separate unit.
Claim 3
Dependent Claim
37 words
An illuminated door lock scratch guard as in claim 1, wherein said illumination means includes hold and delay means, whereupon a single depression onto the base plate means turns on the illumination means for a pre-set time.
Claim 4
Dependent Claim
63 words
An illuminated door lock scratch guard as in claim 1, and comprising a portion of said base plate as a solid bridge between said channel and said aperture, wherein the light from the illumination means spreads along the interior of said aperture to travel about said aperture and thereby illuminate the entire periphery of the door lock without illuminating the entire base plate.
Claim 5
Dependent Claim
49 words
An illuminated door lock scratch guard as in claim 1, wherein said plate means comprises a rigid plastic base member and a soft plastic cover member, and wherein said cavity is formed part way through from one surface of the base member and said cover member covers said cavity.
Claim 6
Dependent Claim
72 words
An illuminated door lock scratch guard as in claim 1, wherein said illumination means comprises a light emitting device in said plate means, a contact coupled between said light emitting device and said battery, and a second contact from said light emitting device and spaced from said battery, whereupon pressing onto said plate means causes said second contact to touch said battery, thereby completing the circuit for illuminating the light emitting device.
Claim 7
Dependent Claim
36 words
An illuminated door lock scratch guard as in claim 5, and comprising insulating means separating a portion of said second contact from said battery, said second contact being cantilevered over the battery beyond said insulating means.
Claim 8
Dependent Claim
26 words
An illuminated door lock scratch guard as in claim 1, wherein said plate means comprises a rigid plastic base member and a soft plastic cover member.
Claim 9
Dependent Claim
21 words
An illuminated door lock scratch guard as in claim 7, and comprising adhesive material on the bottom of said base member.
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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) | 1991-05-17 | 1991-11-16 | 1992-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-17 | 1995-11-16 | 1996-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-05-17 | 1999-11-16 | 2000-05-17 | $7700.00 | Window Closed / Lapsed |