US2948306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft refueling system
Assignee: Standard Vacuum Oil Co
•
Filing: 1959-02-27
•
Granted: 1960-08-09
•
Expires: 1979-02-27
Abstract
No abstract record available.
Inventors
- 👤 Kuraeff William Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:52
CPC Classifications
B; B64; B64F; B64F1/00; B64F1/28; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/6855; Y10T137/6881; Y10T137/8593; Y10T137/8807
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1680831A
Cited
US2525074A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-09 | 1964-02-08 | 1964-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-09 | 1968-02-08 | 1968-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-09 | 1972-02-08 | 1972-08-09 | $7700.00 | Window Closed / Lapsed |