Patent US2957734A successfully refreshed from Google Patents.
US2957734A
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US
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Hydraulic cylinder
Assignee: Dura Corp
•
Filing: 1956-10-02
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Granted: 1960-10-25
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Expires: 1976-10-02
Abstract
No abstract record available.
Inventors
- 👤 Stewart B Mclcod
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:33
CPC Classifications
F; F16; F16F; F16F9/00; F16F9/32; F16F9/3207; F16F9/3235; F16F9/3242; F16F9/44; F16F9/46; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49925; Y10T29/49927; Y10T29/49929
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US821663A
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US807865A
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US1875068A
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GB507616A
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US2389824A
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US2468943A
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US2479398A
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US2487512A
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US2502290A
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US2574273A
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US2586683A
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US2673130A
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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) | 1963-10-25 | 1964-04-25 | 1964-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-25 | 1968-04-25 | 1968-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-25 | 1972-04-25 | 1972-10-25 | $7700.00 | Window Closed / Lapsed |