US2560728A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wave energy apparatus
Assignee: LEE FOUNDATION FOR NUTRITIONAL
•
Filing: 1945-04-21
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Granted: 1951-07-17
•
Expires: 1965-04-21
Abstract
No abstract record available.
Inventors
- 👤 Lee Royal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:26
CPC Classifications
G; G10; G10K; G10K7/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR737562A
Cited
US699405A
Cited
GB190428022A
Cited
GB191207499A
Cited
US2138839A
Cited
US2163650A
Cited
US2258630A
Cited
US2328581A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-16 | 1955-01-15 | 1955-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-16 | 1959-01-15 | 1959-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-16 | 1963-01-15 | 1963-07-17 | $7700.00 | Window Closed / Lapsed |