US2236047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for machineing opposed ends of a workpiece
Assignee: CLEVELAND AUTOMATIC MACHINE Co
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Filing: 1940-03-04
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Granted: 1941-03-25
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Expires: 1960-03-04
Abstract
No abstract record available.
Inventors
- 👤 John C Wattleworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:16
CPC Classifications
B; B23; B23B; B23B11/00; B23Q; B23Q7/00; B23Q7/006; B23Q7/04; B23Q7/047; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5152; Y10T29/5154; Y10T29/5159; Y10T29/516; Y10T29/5168; Y10T29/517; Y10T82/00; Y10T82/25; Y10T82/2514
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) | 1944-03-24 | 1944-09-23 | 1945-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-03-24 | 1948-09-23 | 1949-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-03-24 | 1952-09-23 | 1953-03-25 | $7700.00 | Window Closed / Lapsed |