US2543085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wide frequency band antenna
Assignee: International Standard Electric Corp
•
Filing: 1945-04-13
•
Granted: 1951-02-27
•
Expires: 1965-04-13
Abstract
No abstract record available.
Inventors
- 👤 Willoughby Eric Osborne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:57
CPC Classifications
H; H01; H01Q; H01Q9/00; H01Q9/04; H01Q9/06; H01Q9/14; H01Q9/145; H01Q1/00; H01Q1/27; H01Q1/28; H01Q1/282; H01Q9/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2005779A
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US2159648A
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US2287845A
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US2382693A
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US2284405A
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US2304377A
Cited
US2287220A
Cited
US2344171A
Cited
US2424089A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-26 | 1954-08-28 | 1955-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-26 | 1958-08-28 | 1959-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-26 | 1962-08-28 | 1963-02-27 | $7700.00 | Window Closed / Lapsed |