US2996038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for impregnating electrolytic capacitors
Assignee: Sprague Electric Co
•
Filing: 1952-10-20
•
Granted: 1961-08-15
•
Expires: 1972-10-20
Abstract
No abstract record available.
Inventors
- 👤 Raymond L Hunicke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:24
CPC Classifications
H; H01; H01G; H01G13/00; H01G13/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1318740A
Cited
US1254918A
Cited
US2107780A
Cited
US2120816A
Cited
US2288633A
Cited
GB548960A
Cited
US2407462A
Cited
US2657668A
Cited
US2550453A
Cited
US2594096A
Cited
US2637535A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-14 | 1965-02-13 | 1965-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-14 | 1969-02-13 | 1969-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-14 | 1973-02-13 | 1973-08-15 | $7700.00 | Window Closed / Lapsed |