US2866109A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Axial flux electromagnetic machinery
Assignee: —
•
Filing: —
•
Granted: 1958-12-23
•
Expires: 1975-12-23
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:48
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/06; H02K7/065; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18888; Y10T74/21; Y10T74/2133; Y10T74/2136
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US481701A
Cited
US490449A
Cited
US1022742A
Cited
US1061624A
Cited
FR572979A
Cited
US1739885A
Cited
US1952695A
Cited
US2012207A
Cited
GB414688A
Cited
US2091824A
Cited
US2069991A
Cited
US2096458A
Cited
US2516191A
Cited
US2420047A
Cited
US2570518A
Cited
US2510583A
Cited
US2449901A
Cited
US2456967A
Cited
US2574997A
Cited
US2796571A
Cited
US2741712A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-22 | 1962-06-23 | 1962-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-22 | 1966-06-23 | 1966-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-22 | 1970-06-23 | 1970-12-23 | $7700.00 | Window Closed / Lapsed |