Patent US2364144A successfully refreshed from Google Patents.
US838048A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric motor.
Assignee: Westinghouse Electric Corp
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Filing: —
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Granted: 1906-12-11
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Expires: 1923-12-11
Abstract
No abstract record available.
Inventors
- 👤 Samuel L Nicholson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:40
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/10; H02K7/12; H02K7/125; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2173
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) | 1909-12-10 | 1910-06-11 | 1910-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1913-12-10 | 1914-06-11 | 1914-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1917-12-10 | 1918-06-11 | 1918-12-11 | $7700.00 | Window Closed / Lapsed |