US1485727A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Voltage boosting or bucking system
Assignee: General Electric Co
•
Filing: 1920-09-20
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Granted: 1924-03-04
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Expires: 1940-09-20
Abstract
No abstract record available.
Inventors
- 👤 Maurice L Sindeband
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:28
CPC Classifications
G; G05; G05F; G05F1/00; G05F1/10; G05F1/12; G05F1/32
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) | 1927-03-04 | 1927-09-03 | 1928-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-03-04 | 1931-09-03 | 1932-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-03-04 | 1935-09-03 | 1936-03-04 | $7700.00 | Window Closed / Lapsed |