US2332381A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lathe spindle speed control
Assignee: American Tool Works Co
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Filing: 1940-11-23
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Granted: 1943-10-19
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Expires: 1960-11-23
Abstract
No abstract record available.
Inventors
- 👤 William G Hoelscher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:19
CPC Classifications
B; B23; B23Q; B23Q5/00; B23Q5/02; B23Q5/04; B23Q5/12; B23Q5/14; B23Q5/142; B23Q2705/00; B23Q2705/02; B23Q2705/06; B23Q2705/062; B23Q2705/064; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19251; Y10T74/19279; Y10T74/19293; Y10T74/19298; Y10T74/19307; Y10T74/20; Y10T74/20012; Y10T74/20018; Y10T74/2014; Y10T82/00; Y10T82/25; Y10T82/2552; Y10T82/2554
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) | 1946-10-18 | 1947-04-19 | 1947-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-10-18 | 1951-04-19 | 1951-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-10-18 | 1955-04-19 | 1955-10-19 | $7700.00 | Window Closed / Lapsed |