US2952848A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and means for testing the calibration of radar systems
Assignee: Textron Systems Corp
•
Filing: 1958-12-24
•
Granted: 1960-09-13
•
Expires: 1978-12-24
Abstract
No abstract record available.
Inventors
- 👤 Leland B Zahalka
- 👤 Philip C Feffer
- 👤 Clifton L Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:19
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2706773A
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US2477485A
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US2440253A
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GB593539A
Cited
US2477585A
Cited
US2522541A
Cited
US2489251A
Cited
US2708148A
Cited
US2757285A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-13 | 1964-03-14 | 1964-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-13 | 1968-03-14 | 1968-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-13 | 1972-03-14 | 1972-09-13 | $7700.00 | Window Closed / Lapsed |