US2874470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High frequency dental tool
Assignee: Individual
•
Filing: 1954-05-28
•
Granted: 1959-02-24
•
Expires: 1974-05-28
Abstract
No abstract record available.
Inventors
- 👤 James R Richards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:02
CPC Classifications
A; A61; A61C; A61C3/00; A61C3/02; A61C3/03; A61C1/00; A61C1/02; A61C1/07; A61C17/00; A61C17/16; A61C17/20
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) | 1962-02-23 | 1962-08-25 | 1963-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-23 | 1966-08-25 | 1967-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-23 | 1970-08-25 | 1971-02-24 | $7700.00 | Window Closed / Lapsed |