Patent US1813542A successfully refreshed from Google Patents.
US847790A
Expired / Lapsed
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Drill-chuck.
Assignee: Individual
•
Filing: 1906-06-25
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Granted: 1907-03-19
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Expires: 1926-06-25
Abstract
No abstract record available.
Inventors
- 👤 Laurits Larsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:56
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/10; B23B31/12; B23B31/20; B23B31/201; B23B31/202; B23B31/2025; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17291; Y10T279/17299; Y10T408/00; Y10T408/94; Y10T408/95
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) | 1910-03-18 | 1910-09-17 | 1911-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1914-03-18 | 1914-09-17 | 1915-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1918-03-18 | 1918-09-17 | 1919-03-19 | $7700.00 | Window Closed / Lapsed |