US2501662A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft turret
Assignee: Unisys Corp
•
Filing: 1944-03-30
•
Granted: 1950-03-28
•
Expires: 1964-03-30
Abstract
No abstract record available.
Inventors
- 👤 Clegg Douglas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:03
CPC Classifications
B; B64; B64D; B64D7/00; B64D7/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1182722A
Cited
FR673342A
Cited
FR790418A
Cited
US2199971A
Cited
GB515993A
Cited
FR819207A
Cited
US2233918A
Cited
US2392106A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-27 | 1953-09-26 | 1954-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-27 | 1957-09-26 | 1958-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-27 | 1961-09-26 | 1962-03-28 | $7700.00 | Window Closed / Lapsed |