Patent US2230716A successfully refreshed from Google Patents.
US2230716A
Expired / Lapsed
US
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Table drive for milling machines
Assignee: VAN NORMAN MACHINE TOOL CO
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Filing: 1940-01-29
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Granted: 1941-02-04
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Expires: 1960-01-29
Abstract
No abstract record available.
Inventors
- 👤 Frank W Curtis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:23
CPC Classifications
B; B23; B23Q; B23Q5/00; B23Q5/22; B23Q2705/00; B23Q2705/10; B23Q2705/104; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/304536; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/19698; Y10T74/19702; Y10T74/19721
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) | 1944-02-04 | 1944-08-05 | 1945-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-02-04 | 1948-08-05 | 1949-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-02-04 | 1952-08-05 | 1953-02-04 | $7700.00 | Window Closed / Lapsed |