Patent US2139403A successfully refreshed from Google Patents.
US2139403A
Expired / Lapsed
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Machine tool
Assignee: General Machinery Corp
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Filing: 1934-09-08
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Granted: 1938-12-06
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Expires: 1954-09-08
Abstract
No abstract record available.
Inventors
- 👤 Lyndon C Cole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:19
CPC Classifications
B; B23; B23Q; B23Q7/00; B23Q7/14; B23Q7/1426; B23Q7/1463; B23Q7/1473; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5196; Y10T29/53; Y10T29/53313; Y10T29/5337; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/19698; Y10T74/19823
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) | 1941-12-05 | 1942-06-06 | 1942-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-12-05 | 1946-06-06 | 1946-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-12-05 | 1950-06-06 | 1950-12-06 | $7700.00 | Window Closed / Lapsed |