Patent US2122407A successfully refreshed from Google Patents.
US2122407A
Expired / Lapsed
US
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Hydraulic shock absorber
Assignee: Houde Engineering Corp
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Filing: 1937-03-15
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Granted: 1938-07-05
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Expires: 1957-03-15
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry L Chisholm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:32
CPC Classifications
F; F16; F16F; F16F9/00; F16F9/32; F16F9/44; F16F9/443; F16F2230/00; F16F2230/20; F16F9/06; F16F9/066; F16F9/3207; F16F9/3235; F16F9/43
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) | 1941-07-04 | 1942-01-03 | 1942-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-07-04 | 1946-01-03 | 1946-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-07-04 | 1950-01-03 | 1950-07-05 | $7700.00 | Window Closed / Lapsed |