US2445979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coil mounting
Assignee: Zenith Electronics LLC
•
Filing: 1943-12-31
•
Granted: 1948-07-27
•
Expires: 1963-12-31
Abstract
No abstract record available.
Inventors
- 👤 Robert T Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:34
CPC Classifications
H; H03; H03H; H03H7/00; H03H7/01; H03H7/0153; H03H7/0161; H03H7/0169; H03H7/0184
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1542600A
Cited
US1486109A
Cited
US2145371A
Cited
GB484855A
Cited
US2299337A
Cited
US2198803A
Cited
US2236292A
Cited
US2318415A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-07-27 | 1952-01-26 | 1952-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-07-27 | 1956-01-26 | 1956-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-07-27 | 1960-01-26 | 1960-07-27 | $7700.00 | Window Closed / Lapsed |