US3349490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Straight handpiece
Assignee: Syntex USA LLC
•
Filing: 1964-02-20
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Granted: 1967-10-31
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Expires: 1984-02-20
Abstract
No abstract record available.
Inventors
- 👤 Nathaniel H Lieb
- 👤 Anthony J Turchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:09
CPC Classifications
A; A61; A61C; A61C1/00; A61C1/08; A61C1/18; A61C1/185; A61C1/02; A61C1/05; A61C1/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A DENTAL HANDPIECE COMPRISING AN ELONGATED HOUSING HAVING A LONGITUDINAL AXIS, CHUCK MEANS WITHIN SAID HOUSING ALONG SAID AXIS, SAID CHUCK MEANS INCLUDING A COLLET HAVING AT LEAST TWO COMPRESSIBLE JAWS, MEANS ADAPTED TO EFFECTUATE CLOSING OF SAID JAWS, AN AIR MOTOR MOUNTED WITHIN SAID HOUSING, SAID AIR MOTOE INCLUDING A ROTOR WHICH IS ADAPTED TO CAUSE ROTATION OF SAID COLLET, SPEED REDUCTION AND TORQUE INCREASING MEANS ASSOCIATED WITH SAID ROTOR, WITH SAID COLLET BEING ROTATABLY DRIVEN BY SAID SPEED REDUCTION AND TORQUE INCREASING MEANS, AND A CONDUIT FOR SUPPLYING AIR TO ROTATE SAID AIR MOTOR.
Claim 2
Dependent Claim
96 words
A DENTAL HANDPIECE COMPRISING AN ELONGATED HOUSING HAVING A LONGITUDINAL AXIS, CHUCK MEANS WITHIN SAID HOUSING ALONG SAID AXIS, SAID CHUCK MEANS INCLUDING A COLLET HAVING AT LEAST TWO COMPRESSIBLE JAWS, MEANS ADAPTED TO EFFECTUATE CLOSING OF SAID JAWS, AN AIR MOTOR MOUNTED WITHIN SAID HOUSING, SAID AIR MOTOE INCLUDING A ROTOR WHICH IS ADAPTED TO CAUSE ROTATION OF SAID COLLET, SPEED REDUCTION AND TORQUE INCREASING MEANS ASSOCIATED WITH SAID ROTOR, WITH SAID COLLET BEING ROTATABLY DRIVEN BY SAID SPEED REDUCTION AND TORQUE INCREASING MEANS, AND A CONDUIT FOR SUPPLYING AIR TO ROTATE SAID AIR MOTOR.
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US778955A
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US3009249A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-30 | 1971-05-01 | 1971-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-30 | 1975-05-01 | 1975-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-30 | 1979-05-01 | 1979-10-31 | $7700.00 | Window Closed / Lapsed |