Patent US2617447A successfully refreshed from Google Patents.
US2617447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Warp beam mount
Assignee: STEEL AND ALLOY TANK Co
•
Filing: 1948-09-23
•
Granted: 1952-11-11
•
Expires: 1968-09-23
Abstract
No abstract record available.
Inventors
- 👤 Edward A Kiessling
- 👤 Lake Francis Gerard
- 👤 Stephensen Frederik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:27
CPC Classifications
D; D02; D02H; D02H13/00; D02H13/38
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1480927A
Cited
US1559434A
Cited
US1588828A
Cited
US1803180A
Cited
US1825218A
Cited
US1911981A
Cited
US2363112A
Cited
US2447227A
Cited
US2450431A
Cited
US2465071A
Cited
US2424400A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-11 | 1956-05-12 | 1956-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-11 | 1960-05-12 | 1960-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-11 | 1964-05-12 | 1964-11-11 | $7700.00 | Window Closed / Lapsed |