US2802300A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gyroscopically-controlled cycles
Assignee: Individual
•
Filing: 1954-03-30
•
Granted: 1957-08-13
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Expires: 1974-03-30
Abstract
No abstract record available.
Inventors
- 👤 Howard G Rogers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:30
CPC Classifications
A; A63; A63H; A63H11/00; A63H11/14; A63H33/00; A63H33/005; B; B60; B60L; B60L15/00; B60L15/20; B60L50/00; B60L50/50; B60L50/52; B62; B62K; B62K1/00; B62K11/00; B62K11/007; B60L2200/00; B60L2200/16; B60L2220/00; B60L2220/40; B60L2220/44; B60L2240/00; B60L2240/40; B60L2240/42; B60L2240/421; B60L2240/46; B60L2240/461; B60L2260/00; B60L2260/20; B60L2260/34; Y; Y02; Y02T; Y02T10/00; Y02T10/60; Y02T10/64; Y02T10/70; Y02T10/72
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-12 | 1961-02-11 | 1961-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-12 | 1965-02-11 | 1965-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-12 | 1969-02-11 | 1969-08-13 | $7700.00 | Window Closed / Lapsed |