Patent US3127470A successfully refreshed from Google Patents.
US3127470A
Expired / Lapsed
US
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Insulation for electrical conductors
Assignee: ABB Norden Holding AB
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Filing: 1963-02-26
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Granted: 1964-03-31
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Expires: 1983-02-26
Abstract
No abstract record available.
Inventors
- 👤 Andersson Anders Ragnar
- 👤 Nylund Knut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:26
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/02; H01B3/04; Y; Y10; Y10S; Y10S428/00; Y10S428/906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
AN INSULATED HIGH VOLTAGE COIL COMPRISING AT LEAST ONE CONDUCTING MEMBER, AT LEAST TWELVE LAYERS OF AN INSULATING TAPE COMPRISING A MICA TAPE PROVIDED WITH PERFORATIONS AND HAVING A WOVEN GLASS FIBRE BACKING LAYER, WRAPPED AROUND THE CONDUCTOR, THE SUM OF THE AREAS OF THE PERFORATIONS BEING FROM 0.2 TO 10 PERCENT OF THE TOTAL AREA OF THE MICA TAPE, AND A SOLID RESIN DERIVED FROM A LIQUID RESINOUS COMPOSITION APPLIED TO THE ELECTRICAL CON-
Claim 2
Dependent Claim
75 words
AN INSULATED HIGH VOLTAGE COIL COMPRISING AT LEAST ONE CONDUCTING MEMBER, AT LEAST TWELVE LAYERS OF AN INSULATING TAPE COMPRISING A MICA TAPE PROVIDED WITH PERFORATIONS AND HAVING A WOVEN GLASS FIBRE BACKING LAYER, WRAPPED AROUND THE CONDUCTOR, THE SUM OF THE AREAS OF THE PERFORATIONS BEING FROM 0.2 TO 10 PERCENT OF THE TOTAL AREA OF THE MICA TAPE, AND A SOLID RESIN DERIVED FROM A LIQUID RESINOUS COMPOSITION APPLIED TO THE ELECTRICAL CON-
References Cited (Backward Citations)
US1730740A
Cited
US2656290A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-31 | 1967-09-30 | 1968-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-31 | 1971-09-30 | 1972-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-31 | 1975-09-30 | 1976-03-31 | $7700.00 | Window Closed / Lapsed |