Patent US3412828A successfully refreshed from Google Patents.
US3412828A
Expired / Lapsed
US
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Nonreversible shock strut
Assignee: United States Department of the Air Force
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Filing: 1967-02-06
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Granted: 1968-11-26
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Expires: 1987-02-06
Abstract
No abstract record available.
Inventors
- 👤 Charles J Daniels
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:50
CPC Classifications
F; F16; F16F; F16F7/00; F16F7/12; F16F7/127; B; B60; B60R; B60R19/00; B60R19/02; B60R19/24; B60R19/26; B60R19/34; F16F7/125
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-26 | 1972-05-27 | 1972-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-26 | 1976-05-27 | 1976-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-26 | 1980-05-27 | 1980-11-26 | $7700.00 | Window Closed / Lapsed |