US1108422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differential gear.
Assignee: Cutler Hammer Manufacturing Co
•
Filing: 1909-05-13
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Granted: 1914-08-25
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Expires: 1929-05-13
Abstract
No abstract record available.
Inventors
- 👤 Thomas E Barnum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:27
CPC Classifications
B; B60; B60K; B60K6/00; B60K6/20; B60K6/22; B60K6/36; B60K6/365; F; F16; F16H; F16H3/00; F16H3/44; F16H3/72; F16H3/727; F16H3/728
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) | 1917-08-24 | 1918-02-23 | 1918-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1921-08-24 | 1922-02-23 | 1922-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1925-08-24 | 1926-02-23 | 1926-08-25 | $7700.00 | Window Closed / Lapsed |