US3283187A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric motor with a laminated bore liner
Assignee: Franklin Electric Co Inc
•
Filing: 1964-03-12
•
Granted: 1966-11-01
•
Expires: 1984-03-12
Abstract
No abstract record available.
Inventors
- 👤 Edward J Schaefer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:43
CPC Classifications
H; H02; H02K; H02K5/00; H02K5/04; H02K5/12; H02K5/128; H02K5/1285
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
IN AN ELECTRIC MOTOR, A STATOR COMPRISING A CORE STRUCTURE HAVING A CENTRAL BORE FORMED THERETHROUGH, A PLURALITY OF WINDINGS CARRIED BY SAID CORE STRUCTURE, AND A SEALING LINER POSITIONED WITHIN SAID BORE AND COVERING THE INNER PERIPHERY OF SAID CORE STRUCTURE, SAID INNER BEING
Claim 2
Dependent Claim
45 words
IN AN ELECTRIC MOTOR, A STATOR COMPRISING A CORE STRUCTURE HAVING A CENTRAL BORE FORMED THERETHROUGH, A PLURALITY OF WINDINGS CARRIED BY SAID CORE STRUCTURE, AND A SEALING LINER POSITIONED WITHIN SAID BORE AND COVERING THE INNER PERIPHERY OF SAID CORE STRUCTURE, SAID INNER BEING
References Cited (Backward Citations)
US1543502A
Cited
US2322924A
Cited
US2419159A
Cited
US2573126A
Cited
US2658452A
Cited
US2654848A
Cited
US2741990A
Cited
US2721280A
Cited
US2777963A
Cited
US2798173A
Cited
FR1236543A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |