Patent US2464259A successfully refreshed from Google Patents.
US2464259A
Expired / Lapsed
US
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Pulse circuits
Assignee: Unisys Corp
•
Filing: 1944-05-11
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Granted: 1949-03-15
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Expires: 1964-05-11
Abstract
No abstract record available.
Inventors
- 👤 Proskauer Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:38
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/04; H03K3/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1923252A
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US1919985A
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US2135740A
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US2212202A
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US2179607A
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US2288554A
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US2292835A
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US2277000A
Cited
US2297742A
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US2364756A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-14 | 1952-09-13 | 1953-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-14 | 1956-09-13 | 1957-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-14 | 1960-09-13 | 1961-03-15 | $7700.00 | Window Closed / Lapsed |