US2854839A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lock mechanism for narrow stile doors
Assignee: Adams Rite Manufacturing Co
•
Filing: 1955-10-27
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Granted: 1958-10-07
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Expires: 1975-10-27
Abstract
No abstract record available.
Inventors
- 👤 Charles L Eads
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:29
CPC Classifications
E; E05; E05B; E05B63/00; E05B63/0013; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/1043; Y10T292/1075; Y10T292/108; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5246; Y10T70/5296; Y10T70/5345; Y10T70/5363
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US321143A
Cited
US2731821A
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DE401103C
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US1646181A
Cited
US1792173A
Cited
GB515054A
Cited
DE806211C
Cited
US2666321A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-06 | 1962-04-07 | 1962-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-06 | 1966-04-07 | 1966-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-06 | 1970-04-07 | 1970-10-07 | $7700.00 | Window Closed / Lapsed |