Doorknob shroud
Abstract
Abstract A DOORKNOB SHROUD TO BE MOUNTED ON A DOORKNOB TO BLOCK UNATHORIZED ACESS TO A KEYHOLE. THE SHROUD INCLUDES A HOUSING FORMED WITH A BACK WALL HAVING A SIDE OPENING SLOT THEREIN FOR RECEIPT OF THE DOORKNOB SHANK. THE HOUSING FURTHER INCLUDES A BLOCKING PORTION PROJECTING OVER THE KEYHOLE TO BLOCK ACESS THERETO. A RETAINER IS PIVOTALLY MOUNTED TO THE HOUSING FOR BEING PIVOTED TO A RETAINING POSITION PROJECTING ACROSS THE OPEN END OF THE SLOT. LOCKING MEANS IS PROVIDED FOR LOCKING THE RETAINER IN ITS RETAINING POSITION WHEREBY SUCH RETAINER MAY BE OPENED, THE HOUSING MOUNTED ON A DOORKNOB BY PASSING THE DOORKNOB SHANK IN THROUGH THE OPEN END OF THE SLOT, THE RETAINER CLOSED AND LOCKED IN POSITION TO MAINTAIN THE BLOCKING PORTION DISPOSED IN BLOCKING POSITION OVER THE KEYHOLE.
Inventors
- 👤 Joseph Curtin
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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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) | 1974-11-29 | 1975-05-31 | 1975-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-29 | 1979-05-31 | 1979-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-29 | 1983-05-31 | 1983-11-30 | $7700.00 | Window Closed / Lapsed |