US2197893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lathe headstock
Assignee: RK Le Blond Machine Tool Co
•
Filing: 1939-01-16
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Granted: 1940-04-23
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Expires: 1959-01-16
Abstract
No abstract record available.
Inventors
- 👤 Blond Richard K Le
- 👤 William F Groene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:26
CPC Classifications
B; B23; B23Q; B23Q5/00; B23Q2705/00; B23Q2705/005; Y; Y10; Y10T; 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) | 1943-04-23 | 1943-10-23 | 1944-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-04-23 | 1947-10-23 | 1948-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-04-23 | 1951-10-23 | 1952-04-23 | $7700.00 | Window Closed / Lapsed |