US2646532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for generating a periodic scanning current
Assignee: Hazeltine Research Inc
•
Filing: 1952-03-08
•
Granted: 1953-07-21
•
Expires: 1972-03-08
Abstract
No abstract record available.
Inventors
- 👤 Hazeltine Alan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:24
CPC Classifications
H; H03; H03K; H03K4/00; H03K4/06; H03K4/08; H03K4/10; H03K4/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2536857A
Cited
US2536839A
Cited
US2611106A
Cited
US2543719A
Cited
US2566510A
Cited
US2543720A
Cited
US2588659A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-20 | 1957-01-19 | 1957-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-20 | 1961-01-19 | 1961-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-20 | 1965-01-19 | 1965-07-21 | $7700.00 | Window Closed / Lapsed |