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US3402925A
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Impact energy absorption device
Assignee: MacLean Fogg Lock Nut Co
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Filing: 1966-03-03
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Granted: 1968-09-24
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Expires: 1986-03-03
Abstract
No abstract record available.
Inventors
- 👤 Phillip D Schwiebert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:10
CPC Classifications
F; F16; F16F; F16F1/00; F16F1/36; F16F1/373; F16F1/3732; B; B63; B63B; B63B21/00; B63B2021/003; B63B2021/005
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) | 1971-09-24 | 1972-03-25 | 1972-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-24 | 1976-03-25 | 1976-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-24 | 1980-03-25 | 1980-09-24 | $7700.00 | Window Closed / Lapsed |