Patent US2818549A successfully refreshed from Google Patents.
US2818549A
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US
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Antenna coupling network
Assignee: Raytheon Co
•
Filing: 1954-02-05
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Granted: 1957-12-31
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Expires: 1974-02-05
Abstract
No abstract record available.
Inventors
- 👤 Mack D Adcock
- 👤 Louis A Kurtz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:14
CPC Classifications
H; H01; H01Q; H01Q25/00; H01Q25/02; G; G01; G01S; G01S13/00; G01S13/02; G01S13/06; G01S13/42; G01S13/44; G01S13/4409
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2607849A
Cited
US2585173A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-30 | 1961-07-01 | 1961-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-30 | 1965-07-01 | 1965-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-30 | 1969-07-01 | 1969-12-31 | $7700.00 | Window Closed / Lapsed |