US897257A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dynamo-electric machine.
Assignee: General Electric Co
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Filing: 1908-02-19
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Granted: 1908-08-25
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Expires: 1928-02-19
Abstract
No abstract record available.
Inventors
- 👤 Max R Hanna
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:05
CPC Classifications
H; H02; H02K; H02K47/00; H02K47/12; H02K47/16
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) | 1911-08-25 | 1912-02-24 | 1912-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1915-08-25 | 1916-02-24 | 1916-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1919-08-25 | 1920-02-24 | 1920-08-25 | $7700.00 | Window Closed / Lapsed |