US931445A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnet-coil construction.
Assignee: MAURICE J WOHL
•
Filing: 1908-12-12
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Granted: 1909-08-17
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Expires: 1928-12-12
Abstract
No abstract record available.
Inventors
- 👤 Abbot A Low
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:40
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/28; H01F27/2823; B; B23; B23K; B23K11/00; B23K11/24; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/931; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49071; Y10T428/00; Y10T428/12; Y10T428/12326; Y10T428/12333; Y10T428/12451; Y10T428/29; Y10T428/2913; Y10T428/2922; Y10T428/2925; Y10T428/2933; Y10T428/294; Y10T428/2958
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) | 1912-08-16 | 1913-02-15 | 1913-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-08-16 | 1917-02-15 | 1917-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-08-16 | 1921-02-15 | 1921-08-17 | $7700.00 | Window Closed / Lapsed |