Patent US20170156859A1 successfully refreshed from Google Patents.
US2718615A
Expired / Lapsed
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Liquid cooling of dry disc rectifiers
Assignee: Taylor Winfield Corp
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Filing: 1952-05-05
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Granted: 1955-09-20
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Expires: 1972-05-05
Abstract
No abstract record available.
Inventors
- 👤 Joseph J Riley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:06
CPC Classifications
H; H10; H10W; H10W40/00; H10W40/40; H10W40/47; H10W90/00
Claims Analysis
Total Claims: 0
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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) | 1958-09-19 | 1959-03-21 | 1959-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-19 | 1963-03-21 | 1963-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-19 | 1967-03-21 | 1967-09-20 | $7700.00 | Window Closed / Lapsed |