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US998564A
Expired / Lapsed
US
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Electromagnetic cutting-tool.
Assignee: ARCHIBALD A KRIEG
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Filing: 1909-03-22
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Granted: 1911-07-18
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Expires: 1929-03-22
Abstract
No abstract record available.
Inventors
- 👤 Le Roy T Bonsall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:10
CPC Classifications
H; H02; H02K; H02K33/00; H02K33/12; H02K33/14; Y; Y10; Y10T; Y10T83/00; Y10T83/869; Y10T83/8821
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) | 1914-07-17 | 1915-01-16 | 1915-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1918-07-17 | 1919-01-16 | 1919-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1922-07-17 | 1923-01-16 | 1923-07-18 | $7700.00 | Window Closed / Lapsed |