Patent US2925855A successfully refreshed from Google Patents.
US2925855A
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US
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Spring element for cushion spring structure
Assignee: Stubnitz Greene Corp
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Filing: 1957-11-04
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Granted: 1960-02-23
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Expires: 1977-11-04
Abstract
No abstract record available.
Inventors
- 👤 John M Caughey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:12
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/02; A47C7/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2815797A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-22 | 1963-08-24 | 1964-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-22 | 1967-08-24 | 1968-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-22 | 1971-08-24 | 1972-02-23 | $7700.00 | Window Closed / Lapsed |