US2596455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft flight refueling apparatus
Assignee: Boeing Co
•
Filing: 1949-12-30
•
Granted: 1952-05-13
•
Expires: 1969-12-30
Abstract
No abstract record available.
Inventors
- 👤 Robert L Williams
- 👤 Lammers Alvin Floyd
- 👤 Harold W Zipp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:20
CPC Classifications
B; B64; B64D; B64D39/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2426635A
Cited
US2432078A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-13 | 1955-11-12 | 1956-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-13 | 1959-11-12 | 1960-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-13 | 1963-11-12 | 1964-05-13 | $7700.00 | Window Closed / Lapsed |