US2973171A
Expired / Lapsed
US
⏱️ 0.0 years remaining
In-flight connection for aircraft
Assignee: Flight Refueling Inc
•
Filing: 1957-01-15
•
Granted: 1961-02-28
•
Expires: 1977-01-15
Abstract
No abstract record available.
Inventors
- 👤 Leonard G Ward
- 👤 Jr Noel R White
- 👤 Walter M Iwanowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:25
CPC Classifications
B; B64; B64D; B64D39/00; B64D39/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2451100A
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US2502650A
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GB603203A
Cited
US2634926A
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US2692102A
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US2596455A
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US2679434A
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US2760777A
Cited
US2859002A
Cited
US2788243A
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US2823881A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-02-28 | 1964-08-29 | 1965-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-28 | 1968-08-29 | 1969-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-28 | 1972-08-29 | 1973-02-28 | $7700.00 | Window Closed / Lapsed |