US2789806A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power driven cutting mechanism having means for movably mounting cutter bits
Assignee: Individual
•
Filing: 1956-05-10
•
Granted: 1957-04-23
•
Expires: 1976-05-10
Abstract
No abstract record available.
Inventors
- 👤 James C Buttrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:38
CPC Classifications
E; E21; E21C; E21C35/00; E21C35/18; E21C35/19; E21C35/193; E21C35/1936
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1960-04-22 | 1960-10-22 | 1961-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-22 | 1964-10-22 | 1965-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-22 | 1968-10-22 | 1969-04-23 | $7700.00 | Window Closed / Lapsed |