US2497916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Launching or towing device
Assignee: Individual
•
Filing: 1945-04-24
•
Granted: 1950-02-21
•
Expires: 1965-04-24
Abstract
No abstract record available.
Inventors
- 👤 Henry J Stambaugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:41
CPC Classifications
B; B64; B64F; B64F1/00; B64F1/04; B64F1/06; F; F15; F15B; F15B15/00; F15B15/08; F15B15/082
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US364450A
Cited
US382267A
Cited
US418802A
Cited
US436946A
Cited
US2212588A
Cited
US2125701A
Cited
US2200427A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-20 | 1953-08-22 | 1954-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-20 | 1957-08-22 | 1958-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-20 | 1961-08-22 | 1962-02-21 | $7700.00 | Window Closed / Lapsed |