US1641749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable condenser
Assignee: General Electric Co
•
Filing: 1923-09-22
•
Granted: 1927-09-06
•
Expires: 1943-09-22
Abstract
No abstract record available.
Inventors
- 👤 Jacob M Enders
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:24
CPC Classifications
H; H01; H01G; H01G5/00; H01G5/04; H01G5/06; Y; Y10; Y10T; Y10T403/00; Y10T403/33; Y10T403/335
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) | 1930-09-05 | 1931-03-07 | 1931-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-09-05 | 1935-03-07 | 1935-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-09-05 | 1939-03-07 | 1939-09-06 | $7700.00 | Window Closed / Lapsed |