US2544451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Window regulator mechanism
Assignee: Detroit Harvester Co
•
Filing: 1947-09-13
•
Granted: 1951-03-06
•
Expires: 1967-09-13
Abstract
No abstract record available.
Inventors
- 👤 Burton S Floraday
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:25
CPC Classifications
E; E05; E05F; E05F11/00; E05F11/38; E05F11/44; E05F11/445; E05Y; E05Y2900/00; E05Y2900/50; E05Y2900/53; E05Y2900/55
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1892731A
Cited
US2236450A
Cited
US2320751A
Cited
US2287269A
Cited
US2361609A
Cited
US2409068A
Cited
US2481535A
Cited
US2452448A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-05 | 1954-09-04 | 1955-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-05 | 1958-09-04 | 1959-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-05 | 1962-09-04 | 1963-03-06 | $7700.00 | Window Closed / Lapsed |