US2745031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Direct-current machine with compensating pole-face windings
Assignee: Siemens Schuckertwerke AG
•
Filing: 1952-05-17
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Granted: 1956-05-08
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Expires: 1972-05-17
Abstract
No abstract record available.
Inventors
- 👤 Rimkus Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:58
CPC Classifications
H; H02; H02K; H02K1/00; H02K1/06; H02K1/12; H02K1/18; H02K1/185
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US581089A
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US1048006A
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US676439A
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US1005858A
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US925976A
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US969608A
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US2057503A
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US2423345A
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GB629063A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-08 | 1959-11-07 | 1960-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-08 | 1963-11-07 | 1964-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-08 | 1967-11-07 | 1968-05-08 | $7700.00 | Window Closed / Lapsed |