Patent US3213353A successfully refreshed from Google Patents.
US3213353A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inductive voltage regulator
Assignee: Individual
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Filing: 1962-10-09
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Granted: 1965-10-19
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Expires: 1982-10-09
Abstract
No abstract record available.
Inventors
- 👤 Lee E Stilphen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:20
CPC Classifications
H; H01; H01F; H01F29/00; H01F29/08; H01F29/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
AN INDUCTIVE VOLTAGE COMPRISING A STATIONARY MAGNETIC CORE HAVING A FIRST COIL WOUND THEREON, MEANS FOR FIXEDLY SUPPORTING SAID STATIONARY CORE, A MOVABLE MAGNETIC CORE HAVING A SECOND COIL WOUND THEREON, SAID MOVABLE CORE SPACED FROM SAID STATIONARY CORE ALONG THE PROLONGED LONGITUDINAL AXIS THEREOF AND SEPARATED BY A NARROW AIR GAP THEREFROM, MAIN BEARING MEANS DISPOSED ON SUPPORTING MEANS FOR SUSPENDING SAID MOVABLE CORE THEREFROM AND MAINTAINING SAID MOVABLE CORE OUT OF PHYSICAL CONTACT WITH SAID STATIONARY CORE, GUIDE BEARING MEANS SURROUNDING SAID MOVABLE CORE AND MEANS FOR MOVING SAID MOVABLE CORE WITH RESPECT TO SAID STATIONARY CORE.
Claim 2
Dependent Claim
99 words
AN INDUCTIVE VOLTAGE COMPRISING A STATIONARY MAGNETIC CORE HAVING A FIRST COIL WOUND THEREON, MEANS FOR FIXEDLY SUPPORTING SAID STATIONARY CORE, A MOVABLE MAGNETIC CORE HAVING A SECOND COIL WOUND THEREON, SAID MOVABLE CORE SPACED FROM SAID STATIONARY CORE ALONG THE PROLONGED LONGITUDINAL AXIS THEREOF AND SEPARATED BY A NARROW AIR GAP THEREFROM, MAIN BEARING MEANS DISPOSED ON SUPPORTING MEANS FOR SUSPENDING SAID MOVABLE CORE THEREFROM AND MAINTAINING SAID MOVABLE CORE OUT OF PHYSICAL CONTACT WITH SAID STATIONARY CORE, GUIDE BEARING MEANS SURROUNDING SAID MOVABLE CORE AND MEANS FOR MOVING SAID MOVABLE CORE WITH RESPECT TO SAID STATIONARY CORE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-18 | 1969-04-19 | 1969-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-18 | 1973-04-19 | 1973-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-18 | 1977-04-19 | 1977-10-19 | $7700.00 | Window Closed / Lapsed |