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US174271A
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Improvement in bearings for card-grinders
Assignee: —
•
Filing: —
•
Granted: 1876-02-29
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Expires: 1893-02-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:27
CPC Classifications
B; B24; B24B; B24B19/00; B24B19/16; B24B19/18
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) | 1879-02-28 | 1879-08-30 | 1880-02-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1883-02-28 | 1883-08-30 | 1884-02-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1887-02-28 | 1887-08-30 | 1888-02-29 | $7700.00 | Window Closed / Lapsed |