US2467897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Condenser winder
Assignee: Sprague Electric Co
•
Filing: 1945-07-06
•
Granted: 1949-04-19
•
Expires: 1965-07-06
Abstract
No abstract record available.
Inventors
- 👤 Thomas T Logie
- 👤 Joseph J Galla
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:58
CPC Classifications
H; H01; H01G; H01G13/00; H01G13/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1850102A
Cited
US1952606A
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US2040323A
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US2119445A
Cited
US2205171A
Cited
US2255498A
Cited
US2358654A
Cited
US2416540A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-18 | 1952-10-18 | 1953-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-18 | 1956-10-18 | 1957-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-18 | 1960-10-18 | 1961-04-19 | $7700.00 | Window Closed / Lapsed |