US3073031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental instrument
Assignee: Individual
•
Filing: 1960-03-29
•
Granted: 1963-01-15
•
Expires: 1980-03-29
Abstract
No abstract record available.
Inventors
- 👤 Henry S Brenman
- 👤 Levitt Semond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:43
CPC Classifications
A; A61; A61C; A61C1/00; A61C1/08; A61C1/18; A61C1/185
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A DENTAL INSTRUMENT INCLUDING A TUBULAR HANDLE, A BORED HEAD DISPOSED AT THE END OF SAID HANDLE, A DRIVE SHAFT ROTATABLY RECEIVED WITHIN SAID HANDLE, AN INNER THROW AND AN OUTER THROW AT THE OUTER END OF SAID DRIVE SHAFT PROJECTING INTO SAID BORED HEAD, A BALANCE BUSHING RECIPROCALLY MOUNTED WITHIN SAID BORED HEAD, AND A TOOL HOLDER RECIPROCALLY MOUNTED WITHIN AND GUIDED BY SAID BALANCE BUSHING, WITH SAID INNER THROW BEING OPERATIVELY ENGAGED WITH SAID BALANCE BUSHING AND SAID OUTER THROW BEING OPERATIVELY ENGAGED WITH SAID TOOL HOLDER.
Claim 2
Dependent Claim
89 words
A DENTAL INSTRUMENT INCLUDING A TUBULAR HANDLE, A BORED HEAD DISPOSED AT THE END OF SAID HANDLE, A DRIVE SHAFT ROTATABLY RECEIVED WITHIN SAID HANDLE, AN INNER THROW AND AN OUTER THROW AT THE OUTER END OF SAID DRIVE SHAFT PROJECTING INTO SAID BORED HEAD, A BALANCE BUSHING RECIPROCALLY MOUNTED WITHIN SAID BORED HEAD, AND A TOOL HOLDER RECIPROCALLY MOUNTED WITHIN AND GUIDED BY SAID BALANCE BUSHING, WITH SAID INNER THROW BEING OPERATIVELY ENGAGED WITH SAID BALANCE BUSHING AND SAID OUTER THROW BEING OPERATIVELY ENGAGED WITH SAID TOOL HOLDER.
References Cited (Backward Citations)
US435138A
Cited
US2138815A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |