US3142809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling arrangement for electrical apparatus having at least one multilayer winding
Assignee: Individual
•
Filing: 1962-03-27
•
Granted: 1964-07-28
•
Expires: 1982-03-27
Abstract
No abstract record available.
Inventors
- 👤 Remenyik Tibor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:20
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/08; H01F27/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
AN ELECTRICAL DEVICE COMPRISING, AT LEAST ONE MULTILAYER WINDING; AND AT LEAST ONE COOLING FIN ELECTRICALLY AND MECHANICALLY DIRECTLY CONNECTED TO AN INNER LAYER OF SAID WINDING IN HEAT CONDUCTION RELATION WITH THE LATTER, AND EXTENDING OUTWARDLY THROUGH SAID WINDING TO PROJECT OUTWARDLY THEREOF, IN BY-PASSING RELATION WITH THE OUTER LAYERS OF SAID WINDING.
Claim 2
Dependent Claim
54 words
AN ELECTRICAL DEVICE COMPRISING, AT LEAST ONE MULTILAYER WINDING; AND AT LEAST ONE COOLING FIN ELECTRICALLY AND MECHANICALLY DIRECTLY CONNECTED TO AN INNER LAYER OF SAID WINDING IN HEAT CONDUCTION RELATION WITH THE LATTER, AND EXTENDING OUTWARDLY THROUGH SAID WINDING TO PROJECT OUTWARDLY THEREOF, IN BY-PASSING RELATION WITH THE OUTER LAYERS OF SAID WINDING.
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) | 1967-07-28 | 1968-01-27 | 1968-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-28 | 1972-01-27 | 1972-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-28 | 1976-01-27 | 1976-07-28 | $7700.00 | Window Closed / Lapsed |