US2941024A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Capacitor end seal
Assignee: Sprague Electric Co
•
Filing: 1955-02-15
•
Granted: 1960-06-14
•
Expires: 1975-02-15
Abstract
No abstract record available.
Inventors
- 👤 Walter C Lamphier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:31
CPC Classifications
H; H01; H01G; H01G2/00; H01G2/10; H01G2/103
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2004647A
Cited
US2596134A
Cited
US2611793A
Cited
US2636073A
Cited
US2706798A
Cited
US2790941A
Cited
US2802896A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |