Patent US3339162A successfully refreshed from Google Patents.
US3339162A
Expired / Lapsed
US
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Electrical coil and method of making the same
Assignee: Riegel Paper Corp
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Filing: 1965-05-25
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Granted: 1967-08-29
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Expires: 1985-05-25
Abstract
No abstract record available.
Inventors
- 👤 Burnsteel Harvey Lee
- 👤 William R Pickard
- 👤 Jr Frank A Liebermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:46
CPC Classifications
H; H01; H01F; H01F41/00; H01F41/02; H01F41/04; H01F41/12; H01F41/122; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49071
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
AN ELECTRICAL COIL WINDING PAPER HAVING UNIFORMLY DISTRIBUTED HEAT CONDUCTIVE AND ELECTRICAL INSULATING PROPERTIES, COMPRISING (A) A FIBROUS WEB IMPREGNATED AND COATED WITH A PRESSURE DEFORMABLE COMPOSITION, (B) SAID COMPOSITION COMPRISING SLATE FLOUR AND A THERMOSETTING VEHICLE, (C) THE DEFORMABLE COATING BEING OF SUCH A NATURE AS TO FLOW INTO THE VOIDS AND INTERSTICES OF AN ELECTRICAL COIL WHEN WOUND BETWEEN SUCCESSIVE LAYERS OF THE COIL.
Claim 2
Dependent Claim
48 words
AN ELECTRICAL COIL, COMPRISING (A) A PLURALITY OF SUCCESSIVE LAYERS OF TURNS OF CONDUCTIVE WIRE, AND (B) A WRAPPING INTERPOSED BETWEEN INDIVIDUAL SUCCESSIVE LAYERS OF TURNS, (C) SAID WRAPPING COMPRISING A FIBROUS WEB MATERIAL CONTAINING AND CARRYING ON ITS OPPOSITE SURFACES DISTRIBUTED AMOUNTS OF SLATE FLOUR-THERMOSETTING RESIN COMPOSITION,
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) | 1970-08-28 | 1971-02-27 | 1971-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-28 | 1975-02-27 | 1975-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-28 | 1979-02-27 | 1979-08-29 | $7700.00 | Window Closed / Lapsed |