US2742637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized radar pilot
Assignee: Unisys Corp
•
Filing: 1951-03-19
•
Granted: 1956-04-17
•
Expires: 1971-03-19
Abstract
No abstract record available.
Inventors
- 👤 Frederick D Braddon
- 👤 Jr Francis West
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:46
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/04; G01S7/06; G01S7/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1814842A
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US2272607A
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US2448007A
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US2419970A
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US2573021A
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US2625678A
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US2489251A
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US2482809A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-17 | 1959-10-17 | 1960-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-17 | 1963-10-17 | 1964-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-17 | 1967-10-17 | 1968-04-17 | $7700.00 | Window Closed / Lapsed |