US2451395A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Truing mechanism for grinding wheels
Assignee: CHANDLER PRODUCTS Corp
•
Filing: 1945-08-21
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Granted: 1948-10-12
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Expires: 1965-08-21
Abstract
No abstract record available.
Inventors
- 👤 Klukan Joseph Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:27
CPC Classifications
B; B24; B24B; B24B53/00; B24B53/06; B24B53/08; B24B53/081; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/303416; Y10T74/00; Y10T74/21; Y10T74/2101; Y10T74/2107
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-10-12 | 1952-04-12 | 1952-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-12 | 1956-04-12 | 1956-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-12 | 1960-04-12 | 1960-10-12 | $7700.00 | Window Closed / Lapsed |