US2544648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antenna apparatus
Assignee: Unisys Corp
•
Filing: 1946-03-22
•
Granted: 1951-03-13
•
Expires: 1966-03-22
Abstract
No abstract record available.
Inventors
- 👤 Stanley L Bergey
- 👤 James A Nottingham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:59
CPC Classifications
H; H01; H01Q; H01Q3/00; H01Q3/02; H01Q3/08; G; G01; G01S; G01S13/00; G01S13/02; G01S13/06; G01S13/42; G01S13/422; H01Q3/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1032479A
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US2410666A
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US2407305A
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US2407310A
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US2410827A
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US2412867A
Cited
US2437275A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-12 | 1954-09-11 | 1955-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-12 | 1958-09-11 | 1959-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-12 | 1962-09-11 | 1963-03-13 | $7700.00 | Window Closed / Lapsed |