Patent US2491403A successfully refreshed from Google Patents.
US2491403A
Expired / Lapsed
US
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Indicator and control means for lead screw correction
Assignee: Genesis Worldwide Inc
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Filing: 1945-07-16
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Granted: 1949-12-13
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Expires: 1965-07-16
Abstract
No abstract record available.
Inventors
- 👤 Kurt H Wills
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:17
CPC Classifications
B; B23; B23Q; B23Q23/00; Y; Y10; Y10T; Y10T82/00; Y10T82/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1357903A
Cited
US2309299A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-12 | 1953-06-13 | 1953-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-12 | 1957-06-13 | 1957-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-12 | 1961-06-13 | 1961-12-13 | $7700.00 | Window Closed / Lapsed |