Patent US2249230A successfully refreshed from Google Patents.
US2249230A
Expired / Lapsed
US
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Work locating mechanism for machine tools
Assignee: National Automatic Tool Co Inc
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Filing: 1939-07-26
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Granted: 1941-07-15
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Expires: 1959-07-26
Abstract
No abstract record available.
Inventors
- 👤 Robert A Schafer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:53
CPC Classifications
B; B23; B23Q; B23Q7/00; B23Q7/14; B23Q7/1426; B23Q7/1478; B23Q7/1489; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5124; Y10T29/5196; Y10T408/00; Y10T408/52; Y10T408/54; Y10T408/55; Y10T408/563; Y10T409/00; Y10T409/40; Y10T409/40455; Y10T409/404725; Y10T409/405075
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) | 1944-07-14 | 1945-01-13 | 1945-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-07-14 | 1949-01-13 | 1949-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-07-14 | 1953-01-13 | 1953-07-15 | $7700.00 | Window Closed / Lapsed |