US2570518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oscillating step motor
Assignee: Siemens Brothers and Co Ltd
•
Filing: 1947-08-06
•
Granted: 1951-10-09
•
Expires: 1967-08-06
Abstract
No abstract record available.
Inventors
- 👤 Bryan Ernest Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:29
CPC Classifications
H; H01; H01H; H01H63/00; H01H63/16; H01H63/18; H01H63/22; H02; H02K; H02K7/00; H02K7/06; H02K7/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2409866A
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US1638614A
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US1733872A
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US1851543A
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US2096458A
Cited
US2251505A
Cited
US2343325A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-08 | 1955-04-09 | 1955-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-08 | 1959-04-09 | 1959-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-08 | 1963-04-09 | 1963-10-09 | $7700.00 | Window Closed / Lapsed |