Patent US2239567A successfully refreshed from Google Patents.
US2239567A
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US
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Milling machine spindle construction
Assignee: Milacron Inc
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Filing: 1939-06-14
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Granted: 1941-04-22
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Expires: 1959-06-14
Abstract
No abstract record available.
Inventors
- 👤 Lester F Nenninger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:04
CPC Classifications
B; B23; B23Q; B23Q1/00; B23Q1/70; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/306664; Y10T409/306776
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) | 1944-04-21 | 1944-10-21 | 1945-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-04-21 | 1948-10-21 | 1949-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-04-21 | 1952-10-21 | 1953-04-22 | $7700.00 | Window Closed / Lapsed |