US2516901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotor for dynamoelectric machines
Assignee: Individual
•
Filing: 1945-02-19
•
Granted: 1950-08-01
•
Expires: 1965-02-19
Abstract
No abstract record available.
Inventors
- 👤 Wayne J Morrill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:14
CPC Classifications
H; H02; H02K; H02K1/00; H02K1/06; H02K1/22; H02K1/27; H02K1/2706; H02K1/272; H02K1/274; H02K1/2753; H02K1/278; H02K21/00; H02K21/02; H02K21/04; H02K21/042
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US687991A
Cited
US1638614A
Cited
GB309294A
Cited
US1890752A
Cited
US2193675A
Cited
US2270141A
Cited
US2303893A
Cited
US2312101A
Cited
US2369599A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-31 | 1954-01-30 | 1954-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-31 | 1958-01-30 | 1958-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-31 | 1962-01-30 | 1962-08-01 | $7700.00 | Window Closed / Lapsed |