US3606775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface bolt
Assignee: Von Duprin LLC
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Filing: 1970-08-17
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Granted: 1971-09-21
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Expires: 1990-08-17
Abstract
Abstract THE LOCK HOUSING OF THE SLIDABLE BOLT MEMBER OF A SURFACE BOLT CONSTITUTES A HANDLE BY WHICH THE BOLT IS MANUALLY SHIFTABLE FROM EXTENDED, LOCKED TO RETRACTED, UNLOCKED POSITIONS, THE LOCK HOUSING CONTAINING A LOCK MECHANISM ADAPTED TO SECURE THE BOLT IN EITHER A FULLY LOCKED OR IN A FULLY UNLOCKED POSITION ONLY WHEN THE KEY TO THE LOCKING MECHANISM HAS BEEN REMOVED FROM THE LOCK.
Inventors
- 👤 Norman C Atkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:40
CPC Classifications
E; E05; E05C; E05C1/00; E05C1/02; E05C1/04; E05B; E05B17/00; E05B17/20; E05B17/2007; E05B17/2049; E05B17/2053; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/1014; Y10T292/1022; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5246; Y10T70/5296; Y10T70/5319; Y10T70/70; Y10T70/7441; Y10T70/7768
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |