US2813973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diode frequency converter with nonsinusoidal local oscillation source
Assignee: Lanteris Space LLC
•
Filing: 1953-01-30
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Granted: 1957-11-19
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Expires: 1973-01-30
Abstract
No abstract record available.
Inventors
- 👤 Claudius T Mccoy
- 👤 Jr Edward Chatterton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:14
CPC Classifications
H; H03; H03D; H03D9/00; H03D9/06; H03D9/0608; H03D9/0616
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2171154A
Cited
US2159493A
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US2512614A
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FR974565A
Cited
US2721936A
Cited
US2640919A
Cited
US2773979A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-18 | 1961-05-20 | 1961-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-18 | 1965-05-20 | 1965-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-18 | 1969-05-20 | 1969-11-19 | $7700.00 | Window Closed / Lapsed |