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US1762017A
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Method of manufacture of squirrel-cage rotors for electric machines
Assignee: Maschinenfabrik Esslingen AG
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Filing: 1927-10-18
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Granted: 1930-06-03
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Expires: 1947-10-18
Abstract
No abstract record available.
Inventors
- 👤 Grenzer Ferdinand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:33
CPC Classifications
H; H02; H02K; H02K15/00; H02K15/02; H02K15/021; H02K15/023; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49009; Y10T29/49012; Y10T29/4902; Y10T29/49075; Y10T29/49078; Y10T29/49826; Y10T29/49908; Y10T29/49925; Y10T29/49934; Y10T29/53; Y10T29/5313; Y10T29/53143; Y10T29/53161; Y10T29/5317; Y10T29/53678
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) | 1933-06-02 | 1933-12-02 | 1934-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-06-02 | 1937-12-02 | 1938-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-06-02 | 1941-12-02 | 1942-06-03 | $7700.00 | Window Closed / Lapsed |