US3539229A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Track tension overload device
Assignee: United States Department of the Army
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Filing: 1969-02-10
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Granted: 1970-11-10
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Expires: 1989-02-10
Abstract
No abstract record available.
Inventors
- 👤 Andrew J Scully
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:18
CPC Classifications
B; B62; B62D; B62D55/00; B62D55/08; B62D55/30; B60; B60F; B60F3/00; B60F3/0007; B60F3/0015; B62D55/18; B62D55/24; B62D55/247
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) | 1973-11-09 | 1974-05-11 | 1974-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-09 | 1978-05-11 | 1978-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-09 | 1982-05-11 | 1982-11-10 | $7700.00 | Window Closed / Lapsed |