US2937294A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dynamoelectric device with fluid supported rotor
Assignee: AIR GLIDE Inc
•
Filing: 1956-04-12
•
Granted: 1960-05-17
•
Expires: 1976-04-12
Abstract
No abstract record available.
Inventors
- 👤 Macks Elmer Fred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:56
CPC Classifications
F; F16; F16C; F16C32/00; F16C32/06; F16C32/0603; F16C32/0614; F16C32/0618; F16C32/0681; F16C32/0696; H; H02; H02K; H02K7/00; H02K7/08; H02K7/086; H02K7/088
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US473367A
Cited
US1122167A
Cited
US1906715A
Cited
US2570682A
Cited
US2683636A
Cited
US2660484A
Cited
US2760832A
Cited
US2670146A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-17 | 1963-11-16 | 1964-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-17 | 1967-11-16 | 1968-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-17 | 1971-11-16 | 1972-05-17 | $7700.00 | Window Closed / Lapsed |