US1346143A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire-door lock
Assignee: Emhart Industries Inc
•
Filing: 1919-07-14
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Granted: 1920-07-13
•
Expires: 1939-07-14
Abstract
No abstract record available.
Inventors
- 👤 Ernest L Teich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:26
CPC Classifications
E; E05; E05B; E05B63/00; E05B63/18; E05B63/20; E05C; E05C9/00; E05C9/02; E05B15/00; E05B15/0093; E05C9/18; E05C9/1825; E05C9/1833; E05C9/1841; Y; Y10; Y10S; Y10S292/00; Y10S292/21; Y10S292/68; Y10T; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5226; Y10T70/523; Y10T70/5246; Y10T70/5248; Y10T70/527
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) | 1923-07-13 | 1924-01-12 | 1924-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-07-13 | 1928-01-12 | 1928-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-07-13 | 1932-01-12 | 1932-07-13 | $7700.00 | Window Closed / Lapsed |