US2679004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Snow detector and heater system for microwave antennas
Assignee: Motorola Solutions Inc
•
Filing: 1951-12-21
•
Granted: 1954-05-18
•
Expires: 1971-12-21
Abstract
No abstract record available.
Inventors
- 👤 Dyke Edwin
- 👤 Jr Richard Y Hoffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:30
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1983210A
Cited
US2105925A
Cited
US2115787A
Cited
US2243677A
Cited
US2282078A
Cited
GB645235A
Cited
US2527864A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-17 | 1957-11-16 | 1958-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-17 | 1961-11-16 | 1962-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-17 | 1965-11-16 | 1966-05-18 | $7700.00 | Window Closed / Lapsed |