Patent US2858718A successfully refreshed from Google Patents.
US2858718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite tool bits for substantially axially fed plunge type tools
Assignee: Individual
•
Filing: 1955-12-19
•
Granted: 1958-11-04
•
Expires: 1975-12-19
Abstract
No abstract record available.
Inventors
- 👤 Theodor B Kohler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:53
CPC Classifications
B; B23; B23B; B23B51/00; B23B51/0002; B23B51/02; B23B2240/00; B23B2240/08; B23B2251/00; B23B2251/50; Y; Y10; Y10T; Y10T408/00; Y10T408/78; Y10T408/89; Y10T408/905
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1901654A
Cited
US2294969A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-03 | 1962-05-05 | 1962-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-03 | 1966-05-05 | 1966-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-03 | 1970-05-05 | 1970-11-04 | $7700.00 | Window Closed / Lapsed |