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US2718003A
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Quadrantal errror correcting means for magnetic antennas
Assignee: Bendix Aviation Corp
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Filing: 1954-02-05
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Granted: 1955-09-13
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Expires: 1974-02-05
Abstract
No abstract record available.
Inventors
- 👤 Hemphill Alfred Amos
- 👤 Tewksbury John Merle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:33
CPC Classifications
G; G01; G01S; G01S3/00; G01S3/02; G01S3/04; G01S3/10; G01S3/08; G01S3/085; H; H01; H01Q; H01Q7/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2279422A
Cited
US2454768A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-12 | 1959-03-14 | 1959-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-12 | 1963-03-14 | 1963-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-12 | 1967-03-14 | 1967-09-13 | $7700.00 | Window Closed / Lapsed |