US2680897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toolholder
Assignee: Kennametal Inc
•
Filing: 1953-03-24
•
Granted: 1954-06-15
•
Expires: 1973-03-24
Abstract
No abstract record available.
Inventors
- 👤 George D Murphy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:38
CPC Classifications
B; B23; B23B; B23B27/00; B23B27/14; B23B27/16; Y; Y10; Y10T; Y10T407/00; Y10T407/22; Y10T407/2222; Y10T407/2238; Y10T407/224; Y10T407/2242; Y10T407/2252; Y10T407/2264
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) | 1957-06-14 | 1957-12-14 | 1958-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-14 | 1961-12-14 | 1962-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-14 | 1965-12-14 | 1966-06-15 | $7700.00 | Window Closed / Lapsed |