US2468562A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary tool for cutting circular grooves
Assignee: Timber Engineering Co
•
Filing: 1945-08-13
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Granted: 1949-04-26
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Expires: 1965-08-13
Abstract
No abstract record available.
Inventors
- 👤 Everett S Lank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:14
CPC Classifications
B; B23; B23B; B23B51/00; B23B51/04; B23B51/05; B23D; B23D51/00; B23D51/04; Y; Y10; Y10T; Y10T407/00; Y10T407/19; Y10T407/1906; Y10T407/1908; Y10T407/1912; Y10T407/1924
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) | 1952-04-25 | 1952-10-25 | 1953-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-25 | 1956-10-25 | 1957-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-25 | 1960-10-25 | 1961-04-26 | $7700.00 | Window Closed / Lapsed |