Patent US3577309A successfully refreshed from Google Patents.
US3577309A
Expired / Lapsed
US
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Metallic conductor with ceramic fiber insulation
Assignee: ANAMAG Inc A CORP OF DE
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Filing: 1969-04-23
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Granted: 1971-05-04
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Expires: 1989-04-23
Abstract
Abstract IN THE MANUFACTURE OF MAGNET WIRE WITH GLASS-FIBER INSULATION THE FIBERS ARE DRAWN FROM A CRYSTALLIZABLE COMPOSITION WHICH IS SUBSEQUENTLY HEAT-TREATED TO FORM CERAMIC FIBERS IN SITU, SAID CERAMIC FIBERS HAVING AT LEAST FIFTEEN WEIGHT PERCENT BAO AND AT LEAST FIFTY WEIGHT PERCENT OF CRYSTALS OF EITHER SPODUMENE, JADEITE, OR BENITOITE.
Inventors
- 👤 George W Ostrander
- 👤 Wesley W Pendleton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:51
CPC Classifications
H; H01; H01B; H01B13/00; H01B13/06; H01B13/12; C; C03; C03C; C03C13/00; C03C13/006; H01B3/00; H01B3/02; H01B3/08; H01B3/082; H01B7/00; H01B7/02; H01B7/0241; Y; Y10; Y10S; Y10S428/00; Y10S428/90; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2936; Y10T428/294; Y10T428/296
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-03 | 1974-11-02 | 1975-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-03 | 1978-11-02 | 1979-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-03 | 1982-11-02 | 1983-05-04 | $7700.00 | Window Closed / Lapsed |