Patent US3310785A successfully refreshed from Google Patents.
US2996630A
Expired / Lapsed
US
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Timing device
Assignee: United States Steel Corp
•
Filing: 1959-01-22
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Granted: 1961-08-15
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Expires: 1979-01-22
Abstract
No abstract record available.
Inventors
- 👤 Eugene E Bensema
- 👤 Freeman Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:30
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/28; H03K17/288; Y; Y10; Y10S; Y10S388/00; Y10S388/923; Y10S388/933
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2406978A
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US2644156A
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US2580073A
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US2560289A
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US2614218A
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US2560124A
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US2679598A
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US2784910A
Cited
US2797367A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-14 | 1965-02-13 | 1965-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-14 | 1969-02-13 | 1969-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-14 | 1973-02-13 | 1973-08-15 | $7700.00 | Window Closed / Lapsed |