US2956158A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Voltage discriminating circuit
Assignee: Unisys Corp
•
Filing: 1957-04-23
•
Granted: 1960-10-11
•
Expires: 1977-04-23
Abstract
No abstract record available.
Inventors
- 👤 Matteo Paul L Di
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:44
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/26; G06G7/28; G06G7/25; H; H03; H03G; H03G11/00; H03G11/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2240289A
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US2248793A
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US2469860A
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US2509742A
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US2518341A
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US2609529A
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US2798153A
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US2850646A
Cited
US2822470A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-11 | 1964-04-11 | 1964-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-11 | 1968-04-11 | 1968-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-11 | 1972-04-11 | 1972-10-11 | $7700.00 | Window Closed / Lapsed |