US2688697A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulse stretcher circuit
Assignee: United States Department of the Navy
•
Filing: 1946-03-07
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Granted: 1954-09-07
•
Expires: 1966-03-07
Abstract
No abstract record available.
Inventors
- 👤 James L Lawson
- 👤 Leon B Linford
- 👤 Harold L Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:47
CPC Classifications
G; G11; G11C; G11C27/00; G11C27/02; G11C27/024; H; H03; H03K; H03K5/00; H03K5/01; H03K5/04; H03K5/05
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-06 | 1958-03-08 | 1958-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-06 | 1962-03-08 | 1962-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-06 | 1966-03-08 | 1966-09-07 | $7700.00 | Window Closed / Lapsed |