Patent US3189999A successfully refreshed from Google Patents.
US3189999A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High speed dental drill
Assignee: Individual
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Filing: 1962-06-13
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Granted: 1965-06-22
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Expires: 1982-06-13
Abstract
No abstract record available.
Inventors
- 👤 Reiter David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:16
CPC Classifications
A; A61; A61C; A61C1/00; A61C1/02; A61C1/05; A61C1/08; A61C1/18; A61C1/181; A61C1/183
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A HIGH SPEED DENTAL DRILL COMPRISING A CASING, A TURBINE MOUNTED THEREIN, A CHUCK SECURED TO SAID TURBINE, A SHAFT ON WHICH SAID TURBINE IS FIXED, BEARINGS IN SAID CASING ON WHICH THE ENDS OF SAID SHAFT ARE ROTATABLY MOUNTED, A PUMP, A TUBE LEADING FROM SAID PUMP TO SAID TURBINE AND A RETURN TUBE FROM SAID TURBINE TO SAID PUMP, SAID PUMP AND TUBES AND TURBINE BEING FILLED WITH LUBRICATING OIL, ONE OF SAID BEARINGS IS A JEWEL, THE OTHER BEARING BEING AN O-RING SURROUNDING SAID CHUCK, A COLLAR AND AN END CAP ON SAID CHUCK, SAID O-RING BEING HELD BETWEEN SAID COLLAR AND CAP.
Claim 2
Dependent Claim
106 words
A HIGH SPEED DENTAL DRILL COMPRISING A CASING, A TURBINE MOUNTED THEREIN, A CHUCK SECURED TO SAID TURBINE, A SHAFT ON WHICH SAID TURBINE IS FIXED, BEARINGS IN SAID CASING ON WHICH THE ENDS OF SAID SHAFT ARE ROTATABLY MOUNTED, A PUMP, A TUBE LEADING FROM SAID PUMP TO SAID TURBINE AND A RETURN TUBE FROM SAID TURBINE TO SAID PUMP, SAID PUMP AND TUBES AND TURBINE BEING FILLED WITH LUBRICATING OIL, ONE OF SAID BEARINGS IS A JEWEL, THE OTHER BEARING BEING AN O-RING SURROUNDING SAID CHUCK, A COLLAR AND AN END CAP ON SAID CHUCK, SAID O-RING BEING HELD BETWEEN SAID COLLAR AND CAP.
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) | 1968-06-21 | 1968-12-21 | 1969-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-21 | 1972-12-21 | 1973-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-21 | 1976-12-21 | 1977-06-22 | $7700.00 | Window Closed / Lapsed |