Patent US2522323A successfully refreshed from Google Patents.
US2522323A
Expired / Lapsed
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Shock absorber seal structure
Assignee: Tenneco Automotive Inc
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Filing: 1944-08-28
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Granted: 1950-09-12
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Expires: 1964-08-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Ralph H Whisler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:46
CPC Classifications
F; F16; F16F; F16F9/00; F16F9/32; F16F9/38; F16F9/36; F16J; F16J15/00; F16J15/16
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-11 | 1954-03-13 | 1954-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-11 | 1958-03-13 | 1958-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-11 | 1962-03-13 | 1962-09-12 | $7700.00 | Window Closed / Lapsed |