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US2942160A
Expired / Lapsed
US
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Triggered thyratron circuit
Assignee: Unisys Corp
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Filing: 1955-03-04
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Granted: 1960-06-21
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Expires: 1975-03-04
Abstract
No abstract record available.
Inventors
- 👤 Jr James B Ricketts
- 👤 Robert H Schafer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:06
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/53; H03K3/55; H03K17/00; H03K17/51; H03K17/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1980707A
Cited
US1955874A
Cited
US2177843A
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US2287926A
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US2306237A
Cited
US2510742A
Cited
US2584758A
Cited
US2844781A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |