US2650303A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-frequency loop antenna system
Assignee: Motorola Solutions Inc
•
Filing: 1949-07-01
•
Granted: 1953-08-25
•
Expires: 1969-07-01
Abstract
No abstract record available.
Inventors
- 👤 Schlesinger Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:24
CPC Classifications
H; H01; H01Q; H01Q7/00; H01Q1/00; H01Q1/12; H01Q1/22; H01Q1/24; H01Q5/00; H01Q5/30; H01Q5/307; H01Q5/314; H01Q5/321
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB451213A
Cited
US2238438A
Cited
US2064400A
Cited
US2283897A
Cited
US2268640A
Cited
US2318516A
Cited
US2372651A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-24 | 1957-02-23 | 1957-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-24 | 1961-02-23 | 1961-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-24 | 1965-02-23 | 1965-08-25 | $7700.00 | Window Closed / Lapsed |