US2444992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable device for airplane landing wheels
Assignee: Consolidated Vultee Aircraft Corp
•
Filing: 1943-11-20
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Granted: 1948-07-13
•
Expires: 1963-11-20
Abstract
No abstract record available.
Inventors
- 👤 Howard S Kittel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:50
CPC Classifications
B; B60; B60B; B60B29/00; B60B29/002; B64; B64F; B64F5/00; B64F5/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US464487A
Cited
US1343964A
Cited
US1338630A
Cited
US1349633A
Cited
US1484356A
Cited
US1519894A
Cited
US1797645A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-07-13 | 1952-01-12 | 1952-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-07-13 | 1956-01-12 | 1956-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-07-13 | 1960-01-12 | 1960-07-13 | $7700.00 | Window Closed / Lapsed |