US3148525A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically operated door lock
Assignee: Individual
•
Filing: 1963-04-15
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Granted: 1964-09-15
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Expires: 1983-04-15
Abstract
No abstract record available.
Inventors
- 👤 Sidney I Durant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:53
CPC Classifications
E; E05; E05B; E05B47/00; E05B47/02; E05B47/026; E05B47/0001; E05B47/0002; E05B2047/0007; E05B2047/0084; E05B47/0003; E05B47/0004; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5226; Y10T70/70; Y10T70/7051; Y10T70/7062; Y10T70/7113
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A DOOR LOCK COMPRISING, IN COMBINATION, A LOCK BODY, A DEAD BOLT MOVEABLE IN SAID LOCK BODY BETWEEN AN EXTENDED AND A RETRACTED POSITION, A TONGUE MOVEABLE POSITION, MEANS FOR BIASING SAID TONGUE TOWARD ITS EXTENDED POSITION, FIRST MEANS RESPONSIVE TO AN ELECTRIC CURRENT FOR MOVING SAID DEAD BOLT FROM THE EXTENDED TO THE RETRACTED POSITION, SECOND MEANS RESPONSIVE TO AN ELECTRIC CURRENT FOR MOVING SAID DEAD BOLT FROM THE RETRACTED TO THE EXTENDED POSITION, ENERGIZING MEANS FOR PROVIDING A SOURCE OF CURRENT, MEANS RESPONSIVE TO THE INSERTION OF A KEY FOR CONNECTING SAID ENERGIZING MEANS TO SAID FIRST
Claim 2
Dependent Claim
99 words
A DOOR LOCK COMPRISING, IN COMBINATION, A LOCK BODY, A DEAD BOLT MOVEABLE IN SAID LOCK BODY BETWEEN AN EXTENDED AND A RETRACTED POSITION, A TONGUE MOVEABLE POSITION, MEANS FOR BIASING SAID TONGUE TOWARD ITS EXTENDED POSITION, FIRST MEANS RESPONSIVE TO AN ELECTRIC CURRENT FOR MOVING SAID DEAD BOLT FROM THE EXTENDED TO THE RETRACTED POSITION, SECOND MEANS RESPONSIVE TO AN ELECTRIC CURRENT FOR MOVING SAID DEAD BOLT FROM THE RETRACTED TO THE EXTENDED POSITION, ENERGIZING MEANS FOR PROVIDING A SOURCE OF CURRENT, MEANS RESPONSIVE TO THE INSERTION OF A KEY FOR CONNECTING SAID ENERGIZING MEANS TO SAID FIRST
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) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |