Patent US2932486A successfully refreshed from Google Patents.
US2932486A
Expired / Lapsed
US
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Jacking mechanism and controls
Assignee: De Long Corp
•
Filing: 1955-07-20
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Granted: 1960-04-12
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Expires: 1975-07-20
Abstract
No abstract record available.
Inventors
- 👤 George E Suderow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:33
CPC Classifications
E; E02; E02B; E02B17/00; E02B17/02; E02B17/021; E02B17/04; E02B17/08; E02B17/0809; E02B17/0836; E02B17/0872; E02B2017/0056; E02B2017/006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1117516A
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US2540679A
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US2479623A
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GB612201A
Cited
US2592448A
Cited
US2775869A
Cited
DE913784C
Cited
US2673064A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-12 | 1963-10-12 | 1964-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-12 | 1967-10-12 | 1968-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-12 | 1971-10-12 | 1972-04-12 | $7700.00 | Window Closed / Lapsed |