US2514488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amphibious vehicle
Assignee: Individual
•
Filing: 1945-10-26
•
Granted: 1950-07-11
•
Expires: 1965-10-26
Abstract
No abstract record available.
Inventors
- 👤 James E Hale
- 👤 John H Cox
- 👤 John G Kreyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:28
CPC Classifications
B; B60; B60F; B60F3/00; B60F3/003; B60F3/0038
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1312355A
Cited
DE622540C
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US1180013A
Cited
US1076466A
Cited
GB191311879A
Cited
US1345326A
Cited
US1530577A
Cited
US1615389A
Cited
US2390747A
Cited
US2341165A
Cited
US2397791A
Cited
US2336906A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-10 | 1954-01-09 | 1954-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-10 | 1958-01-09 | 1958-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-10 | 1962-01-09 | 1962-07-11 | $7700.00 | Window Closed / Lapsed |