US2656182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cushioning device
Assignee: National Malleable and Steel Castings Co
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Filing: 1951-06-23
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Granted: 1953-10-20
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Expires: 1971-06-23
Abstract
No abstract record available.
Inventors
- 👤 Willison Donald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:02
CPC Classifications
B; B61; B61G; B61G9/00; B61G9/04; B61G9/06; F; F16; F16F; F16F1/00; F16F1/36; F16F1/40; F16F1/406
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) | 1956-10-19 | 1957-04-20 | 1957-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-19 | 1961-04-20 | 1961-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-19 | 1965-04-20 | 1965-10-20 | $7700.00 | Window Closed / Lapsed |