US3324692A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door lock
Assignee: Newfrey LLC
•
Filing: 1964-09-03
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Granted: 1967-06-13
•
Expires: 1984-09-03
Abstract
No abstract record available.
Inventors
- 👤 Nicholas A Welch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:40
CPC Classifications
E; E05; E05B; E05B65/00; E05B65/10; E05B65/1046; E05B65/106; E05B65/1066; E05B63/00; E05B63/18; E05B63/20; E05B65/1006; E05B65/1013; E05B17/00; E05B17/0045; E05B63/04; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5159
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
IN AN EMERGENCY-EXIT LOCK, AN ACTIVE BASE SECTION AND AN INACTIVE BASE SECTION, AT LEAST ONE LATCH UNIT HAVING A LATCHBOLT THEREIN MOVABLE BETWEEN PROJECTED AND RETRACTED POSITIONS, A PANIC-BAR OPERATED MECHANISM IN SAID ACTIVE BASE SECTION, A VERTICALLY DISPOSED OPERATING MEANS FOR OPERATIVELY CONNECTING SAID MECHANISM TO SAID LATCHBOLT AND OPERABLE UPON ACTUATION OF SAID MECHANISM TO EFFECT RETRACTION OF SAID LATCHBOLT, A REMOVABLE OPERATING UNIT INCLUDING A PANIC-BAR HAVING AN OPERATING LEVER SECURED TO EACH OF ITS OPPOSITE ENDS AND A PAIR OF COVER UNITS SHAPED FOR INTERCHANGEABLE MOUNTING ON EITHER OF SAID BASE SECTIONS, EACH HAVING ONE OF SAID OPERATING LEVELS PITOVALLY MOUNTED THEREON, SAID MECHANISM BEING OPERABLE BY THE RESPECTIVE ONE OF SAID LEVERS WHEN SAID ACTIVE BASE SECTION IS MOUNTED AT ETHER THE RIGHT OR THE LEFT HAND SIDE OF A DOOR.
Claim 2
Dependent Claim
137 words
IN AN EMERGENCY-EXIT LOCK, AN ACTIVE BASE SECTION AND AN INACTIVE BASE SECTION, AT LEAST ONE LATCH UNIT HAVING A LATCHBOLT THEREIN MOVABLE BETWEEN PROJECTED AND RETRACTED POSITIONS, A PANIC-BAR OPERATED MECHANISM IN SAID ACTIVE BASE SECTION, A VERTICALLY DISPOSED OPERATING MEANS FOR OPERATIVELY CONNECTING SAID MECHANISM TO SAID LATCHBOLT AND OPERABLE UPON ACTUATION OF SAID MECHANISM TO EFFECT RETRACTION OF SAID LATCHBOLT, A REMOVABLE OPERATING UNIT INCLUDING A PANIC-BAR HAVING AN OPERATING LEVER SECURED TO EACH OF ITS OPPOSITE ENDS AND A PAIR OF COVER UNITS SHAPED FOR INTERCHANGEABLE MOUNTING ON EITHER OF SAID BASE SECTIONS, EACH HAVING ONE OF SAID OPERATING LEVELS PITOVALLY MOUNTED THEREON, SAID MECHANISM BEING OPERABLE BY THE RESPECTIVE ONE OF SAID LEVERS WHEN SAID ACTIVE BASE SECTION IS MOUNTED AT ETHER THE RIGHT OR THE LEFT HAND SIDE OF A DOOR.
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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) | 1970-06-12 | 1970-12-12 | 1971-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-12 | 1974-12-12 | 1975-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-12 | 1978-12-12 | 1979-06-13 | $7700.00 | Window Closed / Lapsed |