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Patent US2672555A successfully refreshed from Google Patents.
US2672555A
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Antenna
Assignee: RADIART Corp
•
Filing: 1950-12-12
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Granted: 1954-03-16
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Expires: 1970-12-12
Abstract
No abstract record available.
Inventors
- 👤 Edward J Ehrbar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:04
CPC Classifications
H; H01; H01Q; H01Q9/00; H01Q9/04; H01Q9/06; H01Q9/08; B; B25; B25C; B25C1/00; B25C1/001; H01F; H01F21/00; H01F21/02; H01F21/06; H01F21/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1762221A
Cited
US1934412A
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US2143658A
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US2206820A
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US2259628A
Cited
US2483047A
Cited
US2576128A
Cited
US2558487A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-15 | 1957-09-14 | 1958-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-15 | 1961-09-14 | 1962-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-15 | 1965-09-14 | 1966-03-16 | $7700.00 | Window Closed / Lapsed |