US2718282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring tensioner
Assignee: Individual
•
Filing: 1953-07-20
•
Granted: 1955-09-20
•
Expires: 1973-07-20
Abstract
No abstract record available.
Inventors
- 👤 Davis George Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:03
CPC Classifications
E; E05; E05D; E05D13/00; E05D13/10; E05D13/12; E05D13/1253; E05D13/1261; E05Y; E05Y2201/00; E05Y2201/40; E05Y2201/499; E05Y2800/00; E05Y2800/69; E05Y2800/692; E05Y2900/00; E05Y2900/10; E05Y2900/106
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-19 | 1959-03-21 | 1959-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-19 | 1963-03-21 | 1963-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-19 | 1967-03-21 | 1967-09-20 | $7700.00 | Window Closed / Lapsed |