US2483066A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protecting means for electrical windings
Assignee: SIGMUND Corp
•
Filing: 1945-04-30
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Granted: 1949-09-27
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Expires: 1965-04-30
Abstract
No abstract record available.
Inventors
- 👤 Frank J Sigmund
- 👤 William S Hlavin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:31
CPC Classifications
H; H02; H02K; H02K3/00; H02K3/44
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) | 1952-09-26 | 1953-03-28 | 1953-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-26 | 1957-03-28 | 1957-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-26 | 1961-03-28 | 1961-09-27 | $7700.00 | Window Closed / Lapsed |