US2807974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic bearing lathe
Assignee: RK Le Blond Machine Tool Co
•
Filing: 1955-05-17
•
Granted: 1957-10-01
•
Expires: 1975-05-17
Abstract
No abstract record available.
Inventors
- 👤 Walter H Meyer
- 👤 Harold J Siekmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:56
CPC Classifications
B; B23; B23Q; B23Q7/00; B23Q7/04; B23B; B23B5/00; B23B5/18; B23B7/00; B23B7/12; B23Q1/00; B23Q1/72; B23Q1/76; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5178; Y10T29/5182; Y10T82/00; Y10T82/19; Y10T82/25; Y10T82/2514; Y10T82/2516; Y10T82/2593; Y10T82/26
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-30 | 1961-04-01 | 1961-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-30 | 1965-04-01 | 1965-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-30 | 1969-04-01 | 1969-10-01 | $7700.00 | Window Closed / Lapsed |