US2947082A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crystal driven dental tool
Assignee: Individual
•
Filing: 1953-05-15
•
Granted: 1960-08-02
•
Expires: 1973-05-15
Abstract
No abstract record available.
Inventors
- 👤 Epstein Herman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:33
CPC Classifications
A; A61; A61C; A61C1/00; A61C1/02; A61C1/07
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1316685A
Cited
USRE17245E
Cited
US1966446A
Cited
US2044807A
Cited
US2283285A
Cited
US2444349A
Cited
US2588006A
Cited
US2552134A
Cited
US2651148A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |