Patent US2650086A successfully refreshed from Google Patents.
US2650086A
Expired / Lapsed
US
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Spring dampener
Assignee: CLEVELAND WIRE SPRING Co
•
Filing: 1947-01-31
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Granted: 1953-08-25
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Expires: 1967-01-31
Abstract
No abstract record available.
Inventors
- 👤 John L Sjolander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:46
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/46; F01L1/462; F16; F16F; F16F13/00; F16F13/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1073678A
Cited
US904490A
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US1952102A
Cited
US1928678A
Cited
US1988341A
Cited
US2358510A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-24 | 1957-02-23 | 1957-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-24 | 1961-02-23 | 1961-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-24 | 1965-02-23 | 1965-08-25 | $7700.00 | Window Closed / Lapsed |