US3078706A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tailpiece protector
Assignee: Individual
•
Filing: 1960-04-25
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Granted: 1963-02-26
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Expires: 1980-04-25
Abstract
No abstract record available.
Inventors
- 👤 Fred J Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:50
CPC Classifications
E; E05; E05B; E05B17/00; E05B17/04; Y; Y10; Y10T; Y10T70/00; Y10T70/70; Y10T70/7441; Y10T70/7915; Y10T70/7932
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
IN A KEY-OPERATED UNLOCKING MECHANISM INCLUDING A CYLINDER PLUG THEREIN, A LONGITUDINALLY EXTENDING KEYWAY HAVING THE FULL WIDTH THEREOF EXTENDING CONTINUOUSLY THROUGHOUT THE FULL LENGTH OF THE PLUG, A TAILPIECE HAVING AN AXIALLY SHIFTABLE AND LIMITED ROTATABLE ENGAGEMENT WITH THE PLUG, SAID PLUG HAVING A SPACE AT THE INNER END OF THE KEYWAY AND IN COMMUNICATION WITH SAID KEYWAY, A BLOCKER BETWEEN THE END OF SAID CYLINDER PLUG AND THE END OF SAID TAILPIECE, SAID BLOCKER COMPRISING A PIECE OF MATERIAL SEPARATE FROM SAID PLUG AND REMOVABLY POSITIONED IN SAID SPACE AT THE INNER END OF THE KEYWAY AND BEING IN AXIAL ALIGNMENT WITH SAID TAILPIECE AND SAID KEYWAY, WHEREBY TO PREVENT ACCESS TO THE TAILPIECE THROUGH THE KEYWAY BY AN UNAUTHORIZED INSTRUMENT AND TO INHIBIT RELEASING MOVEMENT OF SAID TAILPIECE.
Claim 2
Dependent Claim
131 words
IN A KEY-OPERATED UNLOCKING MECHANISM INCLUDING A CYLINDER PLUG THEREIN, A LONGITUDINALLY EXTENDING KEYWAY HAVING THE FULL WIDTH THEREOF EXTENDING CONTINUOUSLY THROUGHOUT THE FULL LENGTH OF THE PLUG, A TAILPIECE HAVING AN AXIALLY SHIFTABLE AND LIMITED ROTATABLE ENGAGEMENT WITH THE PLUG, SAID PLUG HAVING A SPACE AT THE INNER END OF THE KEYWAY AND IN COMMUNICATION WITH SAID KEYWAY, A BLOCKER BETWEEN THE END OF SAID CYLINDER PLUG AND THE END OF SAID TAILPIECE, SAID BLOCKER COMPRISING A PIECE OF MATERIAL SEPARATE FROM SAID PLUG AND REMOVABLY POSITIONED IN SAID SPACE AT THE INNER END OF THE KEYWAY AND BEING IN AXIAL ALIGNMENT WITH SAID TAILPIECE AND SAID KEYWAY, WHEREBY TO PREVENT ACCESS TO THE TAILPIECE THROUGH THE KEYWAY BY AN UNAUTHORIZED INSTRUMENT AND TO INHIBIT RELEASING MOVEMENT OF SAID TAILPIECE.
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) | 1966-02-25 | 1966-08-27 | 1967-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-25 | 1970-08-27 | 1971-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-25 | 1974-08-27 | 1975-02-26 | $7700.00 | Window Closed / Lapsed |