US2324178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical condenser
Assignee: SPRAGUE SPECIALTIES CO
•
Filing: 1940-05-23
•
Granted: 1943-07-13
•
Expires: 1960-05-23
Abstract
No abstract record available.
Inventors
- 👤 Robert C Sprague
- 👤 Jr Frank W Godsey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:23
CPC Classifications
H; H01; H01G; H01G5/00; H01G5/04; H01G5/12; Y; Y10; Y10T; Y10T29/00; Y10T29/43; Y10T29/435
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1946-07-12 | 1947-01-11 | 1947-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-07-12 | 1951-01-11 | 1951-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-07-12 | 1955-01-11 | 1955-07-13 | $7700.00 | Window Closed / Lapsed |