Patent US3125809A successfully refreshed from Google Patents.
US3125809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve control for dental handpiece
Assignee: —
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Filing: —
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Granted: 1964-03-24
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Expires: 1981-03-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:34
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/44; F16K31/445; A; A61; A61C; A61C1/00; A61C1/0007
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A FLUID-OPERATED HANDPIECE INCLUDING, AN ELONGATED BODY, AN ANNULAR INCLINED CAM FIXED TO AND ENCIRCLING THE BODY, A FLUID-OPERATED HEAD AT THE FORWARD END OF THE BODY, AN OPERATOR SLEEVE RECIPROCALLY CARRIED ON AND SURROUNDING THE EXTERIOR OF THE BODY, A MANUALLY DEPRESSIBLE ELEMENT ON THE BODY TO ACTUATE THE OPERATOR RECIPROCALLY AND IN THE FORM OF A COLLAR SURROUNDING THE BODY AND ONE END OF SAID COLLAR HAVING SLIDABLE ENGAGEMENT WITH SAID ANNULAR INCLINED CAM, AND A FLUID-CONTROLLING VALVE ELEMENT POSITIONED RELATIVE TO SAID BODY BY THE OPERATOR AND CONTROLLING OPERATION OF THE HEAD.
Claim 2
Dependent Claim
95 words
A FLUID-OPERATED HANDPIECE INCLUDING, AN ELONGATED BODY, AN ANNULAR INCLINED CAM FIXED TO AND ENCIRCLING THE BODY, A FLUID-OPERATED HEAD AT THE FORWARD END OF THE BODY, AN OPERATOR SLEEVE RECIPROCALLY CARRIED ON AND SURROUNDING THE EXTERIOR OF THE BODY, A MANUALLY DEPRESSIBLE ELEMENT ON THE BODY TO ACTUATE THE OPERATOR RECIPROCALLY AND IN THE FORM OF A COLLAR SURROUNDING THE BODY AND ONE END OF SAID COLLAR HAVING SLIDABLE ENGAGEMENT WITH SAID ANNULAR INCLINED CAM, AND A FLUID-CONTROLLING VALVE ELEMENT POSITIONED RELATIVE TO SAID BODY BY THE OPERATOR AND CONTROLLING OPERATION OF THE HEAD.
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) | 1967-03-24 | 1967-09-23 | 1968-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-24 | 1971-09-23 | 1972-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-24 | 1975-09-23 | 1976-03-24 | $7700.00 | Window Closed / Lapsed |