Patent US1241559A successfully refreshed from Google Patents.
US1241559A
Expired / Lapsed
US
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Commutator.
Assignee: Westinghouse Electric Corp
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Filing: 1913-12-31
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Granted: 1917-10-02
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Expires: 1933-12-31
Abstract
No abstract record available.
Inventors
- 👤 Harold M Scheibe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:58
CPC Classifications
H; H02; H02K; H02K13/00; H02K13/006; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49009; Y10T29/49011
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) | 1920-10-01 | 1921-04-02 | 1921-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1924-10-01 | 1925-04-02 | 1925-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1928-10-01 | 1929-04-02 | 1929-10-02 | $7700.00 | Window Closed / Lapsed |