US2943276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable artificial transmission lines
Assignee: Lockheed Martin Corp
•
Filing: 1955-05-16
•
Granted: 1960-06-28
•
Expires: 1975-05-16
Abstract
No abstract record available.
Inventors
- 👤 Jr Edward Lovick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:49
CPC Classifications
H; H03; H03H; H03H7/00; H03H7/30; H03H7/34; H03H7/345; H01; H01P; H01P1/00; H01P1/18; H03H7/38; H03H7/383
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2467184A
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US2431425A
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US2527608A
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DE887526C
Cited
US2416297A
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US2558748A
Cited
FR970605A
Cited
US2593361A
Cited
US2622203A
Cited
US2698387A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |