Patent US3589012A successfully refreshed from Google Patents.
US3589012A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tip for ultrasonic dental instrument
Assignee: C&B Corp
•
Filing: 1969-06-30
•
Granted: 1971-06-29
•
Expires: 1989-06-30
Abstract
Abstract AN ULTRASONIC DENTAL INSTRUMENT WITH A CHUCK FOR QUICKLY ATTACHING AND DETACHING A WORK TOOL WHICH CHUCK REQUIRES THE USE OF NO SPECIAL TOOLS. A CONVENTIONAL MAGNETOSTRICTIVE ACOUSTIC TRANSFORMER IS INCLUDED IN THE DENTAL INSTRUMENT TO VIBRATE THE WORK TOOL, THE OUTER END OF THE ACOUSTIC TRANSFORMER INCLUDES A THREADED TOP PORTION TO ENGAGE THE THREADS ON THE SHANK OF A WORK TOOL WHICH IS THREADABLY ADVANCED OR WITHDRAWN ON MANIPULATION OF THE CHUCK ON RAPID ASSEMBLY AND DISASSEMBLY OF WORK TOOLS FROM THE DENTAL INSTRUMENT.
Inventors
- 👤 Bruce Richman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:34
CPC Classifications
A; A61; A61C; A61C1/00; A61C1/02; A61C1/07; B; B23; B23Q; B23Q1/00; B23Q1/0009; B23Q1/0018; B23Q1/0027; B23Q1/0036
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |