US2009833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric power converting apparatus
Assignee: General Electric Co
•
Filing: 1930-08-27
•
Granted: 1935-07-30
•
Expires: 1950-08-27
Abstract
No abstract record available.
Inventors
- 👤 Burnice D Bedford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:51
CPC Classifications
H; H03; H03F; H03F1/00; H03F1/02; H03F1/04; H02; H02M; H02M7/00; H02M7/42; H02M7/44; H02M7/48; H02M7/505; H02M7/51; H03F3/00; H03F3/02; H03F3/38; H03F3/40
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) | 1938-07-29 | 1939-01-28 | 1939-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-07-29 | 1943-01-28 | 1943-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-07-29 | 1947-01-28 | 1947-07-30 | $7700.00 | Window Closed / Lapsed |