US3091728A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric motors
Assignee: Individual
•
Filing: 1961-05-17
•
Granted: 1963-05-28
•
Expires: 1981-05-17
Abstract
No abstract record available.
Inventors
- 👤 Jimmie S Hogan
- 👤 Robert L Hogan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:08
CPC Classifications
H; H02; H02K; H02K29/00; H02K29/06; H02K29/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
AN ELECTRIC MOTOR COMPRISING FIELD COILS SUITABLY MOUNTED FOR GENERATING MAGNETIC FIELDS IN SELECTED AREAS, A PERMANENTLY MAGNETIZED ROTOR SUITABLY MOUNTED FOR ROTATION WITHIN SAID MAGNETIC FIELDS, A POWER SOURCE INCLUDING SWITCHING MEANS FOR SELECTIVELY ENERGIZING SAID FIELD COILS, PICLUP MEANS FOR RECEIVING AN INDUCED ELECTRIC CURRENT TO CONTROL SAID SWITCHING MEANS, MEANS TO INDUCE A CURRENT IN SAID PICKUP MEANS, MEANS SUITABLY MOUNTED FOR ROTATION WITH SAID ROTOR FOR CONTROLLING SAID PICKUP MEANS.
Claim 2
Dependent Claim
74 words
AN ELECTRIC MOTOR COMPRISING FIELD COILS SUITABLY MOUNTED FOR GENERATING MAGNETIC FIELDS IN SELECTED AREAS, A PERMANENTLY MAGNETIZED ROTOR SUITABLY MOUNTED FOR ROTATION WITHIN SAID MAGNETIC FIELDS, A POWER SOURCE INCLUDING SWITCHING MEANS FOR SELECTIVELY ENERGIZING SAID FIELD COILS, PICLUP MEANS FOR RECEIVING AN INDUCED ELECTRIC CURRENT TO CONTROL SAID SWITCHING MEANS, MEANS TO INDUCE A CURRENT IN SAID PICKUP MEANS, MEANS SUITABLY MOUNTED FOR ROTATION WITH SAID ROTOR FOR CONTROLLING SAID PICKUP MEANS.
References Cited (Backward Citations)
US2980839A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-27 | 1966-11-26 | 1967-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-27 | 1970-11-26 | 1971-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-27 | 1974-11-26 | 1975-05-28 | $7700.00 | Window Closed / Lapsed |