Patent US3346958A successfully refreshed from Google Patents.
US3346958A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Finger control for dental handpiece
Assignee: Syntex USA LLC
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Filing: 1963-12-06
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Granted: 1967-10-17
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Expires: 1983-12-06
Abstract
No abstract record available.
Inventors
- 👤 Charles E Sinatra
- 👤 Jr William Tanski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:23
CPC Classifications
A; A61; A61C; A61C1/00; A61C1/02; A61C1/06; A61C1/0007; Y; Y10; Y10S; Y10S200/00; Y10S200/02; Y10S415/00; Y10S415/904
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A DENTAL HANDPIECE COMPRISING A HOUSING, ROTATABLE CHUCK MEANS WITHIN SAID HOUSING, A FIRST ELECTRICAL MEANS ASSOCIATED WITH SAID HOUSING, A SECOND ELECTRICAL MEANS ASSOCIATED WITH SAID HOUSING, SAID FIRST AND SECOND ELECTRICAL MEANS BEING ELECTRICALLY ISOLATED, SAID ELECTRICAL MEANS BEING ELECTRICALLY CONNECTED TO SWITCH MEANS, SAID SWITCH MEANS ADAPTED TO STOP AND START THE ROTATION OF SAID CHUCK MEANS, SAID FIRST AND SECOND ELECTRICAL MEANS ADAPTED TO BE ELECTRICALLY CONNECTED BY ELECTRICAL CONTACT WITH THE HAND OF THE USER OF THE HANDPIECE, THEREBY CLOSING SAID SWITCH MEANS AND STARTING THE ROTATION OF SAID CHUCK MEANS.
Claim 2
Dependent Claim
96 words
A DENTAL HANDPIECE COMPRISING A HOUSING, ROTATABLE CHUCK MEANS WITHIN SAID HOUSING, A FIRST ELECTRICAL MEANS ASSOCIATED WITH SAID HOUSING, A SECOND ELECTRICAL MEANS ASSOCIATED WITH SAID HOUSING, SAID FIRST AND SECOND ELECTRICAL MEANS BEING ELECTRICALLY ISOLATED, SAID ELECTRICAL MEANS BEING ELECTRICALLY CONNECTED TO SWITCH MEANS, SAID SWITCH MEANS ADAPTED TO STOP AND START THE ROTATION OF SAID CHUCK MEANS, SAID FIRST AND SECOND ELECTRICAL MEANS ADAPTED TO BE ELECTRICALLY CONNECTED BY ELECTRICAL CONTACT WITH THE HAND OF THE USER OF THE HANDPIECE, THEREBY CLOSING SAID SWITCH MEANS AND STARTING THE ROTATION OF SAID CHUCK MEANS.
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) | 1970-10-16 | 1971-04-17 | 1971-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-16 | 1975-04-17 | 1975-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-16 | 1979-04-17 | 1979-10-17 | $7700.00 | Window Closed / Lapsed |