Patent US2124349A successfully refreshed from Google Patents.
US2124349A
Expired / Lapsed
US
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Door operating device
Assignee: Individual
•
Filing: 1936-04-15
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Granted: 1938-07-19
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Expires: 1956-04-15
Abstract
No abstract record available.
Inventors
- 👤 Herbster George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:48
CPC Classifications
E; E05; E05F; E05F1/00; E05F1/08; E05F1/10; E05F1/1041; E05F1/1066; E05F1/1075; F; F24; F24C; F24C15/00; F24C15/02; F24C15/023; E05Y; E05Y2201/00; E05Y2201/20; E05Y2201/21; E05Y2201/252; E05Y2201/254; E05Y2201/256; E05Y2201/262; E05Y2201/264; E05Y2900/00; E05Y2900/30; E05Y2900/308
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) | 1941-07-18 | 1942-01-17 | 1942-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-07-18 | 1946-01-17 | 1946-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-07-18 | 1950-01-17 | 1950-07-19 | $7700.00 | Window Closed / Lapsed |