US3074167A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air driven dental drill with collet
Assignee: Syntex USA LLC
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Filing: 1959-06-22
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Granted: 1963-01-22
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Expires: 1979-06-22
Abstract
No abstract record available.
Inventors
- 👤 Anthony J Turchi
- 👤 Nathaniel H Lieb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:20
CPC Classifications
A; A61; A61C; A61C1/00; A61C1/08; A61C1/14; A61C1/141; F; F16; F16C; F16C19/00; F16C19/54; F16C19/546; F16C19/547; F16C19/548; F16C35/00; F16C35/04; F16C35/06; F16C2226/00; F16C2226/30; F16C2226/40; F16C2316/00; F16C2316/10; F16C2316/13; Y; Y10; Y10S; Y10S415/00; Y10S415/904; Y10T; Y10T279/00; Y10T279/17; Y10T279/17128; Y10T279/17136; Y10T279/17145
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
IN A DENTAL HANDPIECE HAVING A ROTARY CHUCK, ROTOR MEANS INCLUDING A BODY PORTION, A FORWARDLY PROJECTING FIRST HUB AND A REARWARDLY PROJECTING SECOND HUB, SAID ROTOR MEANS HAVING A CENTRAL BORE EXTENDING THERETHROUGH, SAID BODY PORTION HAVING A PLURALITY OF DEPRESSIONS FORMED ON ITS OUTER SURFACE, PNEUMATIC MEANS FOR CONVEYING AIR TO THE DEPRESSIONS OF SAID BODY PORTION TO ROTATE SAID ROTOR, FIRST AND SECOND BEARING MEANS RESPECTIVELY SECURED TO SAID FIRST AND SECOND HUBS, SAID FIRST AND SECOND BEARING MEANS INCLUDING MOVABLE RACES SECURED TO SAID ROTOR FOR ROTATION THEREWITH, CHUCK MEANS MOUNTED IN SAID CENTRAL BORE FOR ROTATION WITH SAID ROTOR, SAID CHUCK MEANS HAVING A LONGITUDINAL AXIS AND INCLUDING A REARWARD
Claim 2
Dependent Claim
115 words
IN A DENTAL HANDPIECE HAVING A ROTARY CHUCK, ROTOR MEANS INCLUDING A BODY PORTION, A FORWARDLY PROJECTING FIRST HUB AND A REARWARDLY PROJECTING SECOND HUB, SAID ROTOR MEANS HAVING A CENTRAL BORE EXTENDING THERETHROUGH, SAID BODY PORTION HAVING A PLURALITY OF DEPRESSIONS FORMED ON ITS OUTER SURFACE, PNEUMATIC MEANS FOR CONVEYING AIR TO THE DEPRESSIONS OF SAID BODY PORTION TO ROTATE SAID ROTOR, FIRST AND SECOND BEARING MEANS RESPECTIVELY SECURED TO SAID FIRST AND SECOND HUBS, SAID FIRST AND SECOND BEARING MEANS INCLUDING MOVABLE RACES SECURED TO SAID ROTOR FOR ROTATION THEREWITH, CHUCK MEANS MOUNTED IN SAID CENTRAL BORE FOR ROTATION WITH SAID ROTOR, SAID CHUCK MEANS HAVING A LONGITUDINAL AXIS AND INCLUDING A REARWARD
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) | 1966-01-21 | 1966-07-23 | 1967-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-21 | 1970-07-23 | 1971-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-21 | 1974-07-23 | 1975-01-22 | $7700.00 | Window Closed / Lapsed |