US2419863A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated rotor for dynamoelectric machines
Assignee: General Electric Co
•
Filing: 1944-05-11
•
Granted: 1947-04-29
•
Expires: 1964-05-11
Abstract
No abstract record available.
Inventors
- 👤 David H Ware
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:16
CPC Classifications
H; H02; H02K; H02K1/00; H02K1/06; H02K1/22; H02K1/28
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB191012594A
Cited
GB364027A
Cited
US2067155A
Cited
US2141319A
Cited
US2048421A
Cited
GB523311A
Cited
US2279402A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-04-28 | 1950-10-28 | 1951-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-04-28 | 1954-10-28 | 1955-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-04-28 | 1958-10-28 | 1959-04-29 | $7700.00 | Window Closed / Lapsed |