US2763798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulated electrical coils
Assignee: Westinghouse Electric Corp
•
Filing: 1953-05-19
•
Granted: 1956-09-18
•
Expires: 1973-05-19
Abstract
No abstract record available.
Inventors
- 👤 Sylvester E Kriss
- 👤 Aubrey W Worthington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:11
CPC Classifications
H; H02; H02K; H02K3/00; H02K3/32; H02K3/34; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49071
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1306625A
Cited
DE497254C
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US1697134A
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US2425294A
Cited
US2569540A
Cited
US2601243A
Cited
US2618728A
Cited
US2623920A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-18 | 1960-03-19 | 1960-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-18 | 1964-03-19 | 1964-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-18 | 1968-03-19 | 1968-09-18 | $7700.00 | Window Closed / Lapsed |