US2984478A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring using a compressible solid
Assignee: Cleveland Pneumatic Industries Inc
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Filing: 1959-11-09
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Granted: 1961-05-16
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Expires: 1979-11-09
Abstract
No abstract record available.
Inventors
- 👤 Jr William B Westcott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:18
CPC Classifications
F; F16; F16F; F16F9/00; F16F9/30; F16F1/00; F16F1/36; F16F1/42; F16F1/44; F16F1/445; F16F5/00; F16F2236/00; F16F2236/04; F16F2236/045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-15 | 1964-11-14 | 1965-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-15 | 1968-11-14 | 1969-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-15 | 1972-11-14 | 1973-05-16 | $7700.00 | Window Closed / Lapsed |