US908462A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oscillating mechanism for lap-grinding machines.
Assignee: HANCHETT SWAGE WORKS
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Filing: 1908-02-29
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Granted: 1909-01-05
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Expires: 1928-02-29
Abstract
No abstract record available.
Inventors
- 👤 John P Hedstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:35
CPC Classifications
B; B24; B24B; B24B47/00; B24B47/10; B24B47/16
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) | 1912-01-05 | 1912-07-06 | 1913-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-01-05 | 1916-07-06 | 1917-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-01-05 | 1920-07-06 | 1921-01-05 | $7700.00 | Window Closed / Lapsed |