Patent US923930A successfully refreshed from Google Patents.
US923930A
Expired / Lapsed
US
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Metal-planer.
Assignee: HAMILTON MACHINE TOOL Co
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Filing: 1908-05-04
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Granted: 1909-06-08
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Expires: 1928-05-04
Abstract
No abstract record available.
Inventors
- 👤 Hans Baerbalck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:41
CPC Classifications
B; B23; B23D; B23D1/00; Y; Y10; Y10T; Y10T409/00; Y10T409/50; Y10T409/504756; Y10T409/505248; Y10T409/505412; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19293; Y10T74/19298; Y10T74/19307
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) | 1912-06-07 | 1912-12-07 | 1913-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-06-07 | 1916-12-07 | 1917-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-06-07 | 1920-12-07 | 1921-06-08 | $7700.00 | Window Closed / Lapsed |