US2494430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotating kite
Assignee: Individual
•
Filing: 1948-03-29
•
Granted: 1950-01-10
•
Expires: 1968-03-29
Abstract
No abstract record available.
Inventors
- 👤 James R Carnwath
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:41
CPC Classifications
A; A63; A63H; A63H27/00; A63H27/002
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1030363A
Cited
FR430690A
Cited
US1296687A
Cited
US1431017A
Cited
GB271164A
Cited
US1812955A
Cited
US1839005A
Cited
US2107808A
Cited
US2433344A
Cited
US2388478A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-09 | 1953-07-11 | 1954-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-09 | 1957-07-11 | 1958-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-09 | 1961-07-11 | 1962-01-10 | $7700.00 | Window Closed / Lapsed |