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US844478A
Expired / Lapsed
US
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Catheter-user's mechanical assistant.
Assignee: Individual
•
Filing: 1904-10-25
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Granted: 1907-02-19
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Expires: 1924-10-25
Abstract
No abstract record available.
Inventors
- 👤 James F Spalding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:33
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/95; A61B; A61B17/00; A61B17/12; A61B17/12022; A61B2017/1205
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) | 1910-02-18 | 1910-08-20 | 1911-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1914-02-18 | 1914-08-20 | 1915-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1918-02-18 | 1918-08-20 | 1919-02-19 | $7700.00 | Window Closed / Lapsed |