Patent US1030052A successfully refreshed from Google Patents.
US3142168A
Expired / Lapsed
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Lock protecting devices
Assignee: HOTEL SECURITY SYSTEMS CORP
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Filing: 1963-03-26
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Granted: 1964-07-28
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Expires: 1983-03-26
Abstract
No abstract record available.
Inventors
- 👤 John F Wellekens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:05
CPC Classifications
E; E05; E05B; E05B17/00; E05B17/14; Y; Y10; Y10T; Y10T70/00; Y10T70/70; Y10T70/7441; Y10T70/7915; Y10T70/7932; Y10T70/80; Y10T70/8432; Y10T70/8649
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
117 words
A LOCK PROTECTIVE DEVICE COMPRISING, A LOCK CASING CONTAINING LOCK MECHANISM AND INCLUDING A KEYHOLE, SAID CASING HAVING A FORWARD EXTENSION, A CUP-SHAPED MEMBER FITTED INTO SAID EXTENSION, SAID CUP-SHAPED MEMBER BEING OPEN AT ITS FORWARD END, A PAIR OF HALF-ROUND SEGMENTS ROTATIVELY MAINTAINED IN THE CUP-SHAPED MEMBER AND SPACED APART TO DEFINE A KEYHOLE-LIKE SLOT BETWEEN THEM IN THE FORWARD END OF THE CUP-SHAPED MEMBER SO THAT A KEY MAY BE PASSED THROUGH SUCH SLOT TO REACH THE KEYHOLE OF THE LOCK BEHIND THE SEGMENTS, SAID SEGMENTS BEING ROTATIVE WITHIN THE CUP-SHAPED MEMBER WHEN A TOOL OTHER THAN A PROPER KEY IS THRUST BETWEEN THEM AND TURNED IN AN EFFORT TO REACH AND BREAK THE LOCK.
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) | 1967-07-28 | 1968-01-27 | 1968-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-28 | 1972-01-27 | 1972-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-28 | 1976-01-27 | 1976-07-28 | $7700.00 | Window Closed / Lapsed |