Patent US3411046A successfully refreshed from Google Patents.
US3411046A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic combination lock system
Assignee: United States Department of the Army
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Filing: 1966-06-06
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Granted: 1968-11-12
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Expires: 1986-06-06
Abstract
No abstract record available.
Inventors
- 👤 John M Swannick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:01
CPC Classifications
G; G07; G07C; G07C9/00; G07C9/00174; G07C9/00658; G07C9/00706; Y; Y10; Y10T; Y10T70/00; Y10T70/70; Y10T70/7051; Y10T70/7062
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
97 words
AN ELECTRONIC COMBINATION LOCK SYSTEM FOR A MECHANICALLY MOVABLE LOCKING MEANS COMPRISING IN COMBINATION, AN ELECTRONIC LOCK UNIT FOR OPERATING SAID LOCKING MEANS AND INCLUDING AN ELECTRO-MECHANICAL OPERATING DEVICE THEREFOR, AND AN ELECTRONIC KEY UNIT, SAID LOCK AND KEY UNITS EACH HAVING A LOCK AND KEY CONNECTOR PROVIDING TERMINALS ADAPTED TO BE ENGAGED IN OPERATION AND TO BE DISCONNECTED OUT OF OPERATION, AND SAID LOCK UNIT FURTHER INCLUDING A PLURALITY OF FLIP-FLOP CIRCUITS ADAPTED TO CONTROL SAID ELECTRO-MECHANICAL OPERATING ELEMENTS SELECTIVELY IN ACCORDANCE WITH ESTABLISHED CONNECTIONS TO SET AND RESET THE CIRCUIT ELEMENTS OF SAID LOCK UNIT.
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) | 1971-11-12 | 1972-05-13 | 1972-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-12 | 1976-05-13 | 1976-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-12 | 1980-05-13 | 1980-11-12 | $7700.00 | Window Closed / Lapsed |