Patent US2695657A successfully refreshed from Google Patents.
US2695657A
Expired / Lapsed
US
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Spring cushion structure
Assignee: LA Young Spring and Wire Corp
•
Filing: 1948-08-10
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Granted: 1954-11-30
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Expires: 1968-08-10
Abstract
No abstract record available.
Inventors
- 👤 William A Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:23
CPC Classifications
A; A47; A47C; A47C23/00; A47C23/007
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE18860E
Cited
US999816A
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US1103526A
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US1592870A
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US1859630A
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US2002157A
Cited
US2199382A
Cited
US2364948A
Cited
US2469216A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-29 | 1958-05-31 | 1958-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-29 | 1962-05-31 | 1962-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-29 | 1966-05-31 | 1966-11-30 | $7700.00 | Window Closed / Lapsed |