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US2773960A
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Assignee: SUNDT ENGINEERING Co
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Filing: 1954-04-28
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Granted: 1956-12-11
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Expires: 1974-04-28
Abstract
No abstract record available.
Inventors
- 👤 Edward V Sundt
- 👤 Hugh A Triplett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:40
CPC Classifications
H; H01; H01H; H01H85/00; H01H85/02; H01H85/04; H01H85/041; H01H85/044; H01H85/045; H01H85/0458
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1501018A
Cited
US1660828A
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US1927905A
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US2055866A
Cited
FR891877A
Cited
US2543245A
Cited
US2557587A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-11 | 1960-06-11 | 1960-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-11 | 1964-06-11 | 1964-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-11 | 1968-06-11 | 1968-12-11 | $7700.00 | Window Closed / Lapsed |