US2944639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shock absorber with vacuum compensator
Assignee: Individual
•
Filing: 1956-07-30
•
Granted: 1960-07-12
•
Expires: 1976-07-30
Abstract
No abstract record available.
Inventors
- 👤 William T Blake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:36
CPC Classifications
F; F16; F16F; F16F9/00; F16F9/10; F16F9/14; F16F9/16; F16F9/18; F16F9/003; F16F9/20; F16F9/32; F16F9/34; F16F9/50; F16F9/516; F16F2222/00; F16F2222/02; F16F2230/00; F16F2230/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US404012A
Cited
US1072350A
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US1109996A
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US1220972A
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US2096094A
Cited
AT154419B
Cited
US2333096A
Cited
US2314404A
Cited
FR986649A
Cited
US2431200A
Cited
US2770003A
Cited
FR1057048A
Cited
US2778259A
Cited
US2866223A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-12 | 1964-01-11 | 1964-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-12 | 1968-01-11 | 1968-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-12 | 1972-01-11 | 1972-07-12 | $7700.00 | Window Closed / Lapsed |