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Patent US710257A successfully refreshed from Google Patents.
US710257A
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Magnetic drilling-jig.
Assignee: Individual
•
Filing: 1902-03-24
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Granted: 1902-09-30
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Expires: 1922-03-24
Abstract
No abstract record available.
Inventors
- 👤 Adolph L De Leeuw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:01
CPC Classifications
B; B25; B25H; B25H1/00; B25H1/0021; B25H1/0057; B25H1/0064; B25H1/0071; Y; Y10; Y10S; Y10S29/00; Y10S29/095; Y10T; Y10T408/00; Y10T408/55; Y10T408/554; Y10T408/567; Y10T83/00; Y10T83/869; Y10T83/8765; Y10T83/8768
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) | 1905-09-29 | 1906-03-31 | 1906-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1909-09-29 | 1910-03-31 | 1910-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1913-09-29 | 1914-03-31 | 1914-09-30 | $7700.00 | Window Closed / Lapsed |