Patent US2952761A successfully refreshed from Google Patents.
US3393676A
Expired / Lapsed
US
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Dental instrument assembly
Assignee: Sybron Transition Corp
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Filing: 1964-09-28
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Granted: 1968-07-23
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Expires: 1984-09-28
Abstract
No abstract record available.
Inventors
- 👤 Edson L Kummer
- 👤 Karl H Burzlaff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:36
CPC Classifications
A; A61; A61C; A61C17/00; A61C17/02; A61C1/00; A61C17/0217; A61C19/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A SYRINGE ASSEMBLY FOR USE IN DENTAL OPERATIONS ADAPTED TO BE CARRIED BY AND WITHIN A CENTAL UNIT COMPRISING THE COMBINATION OF: (A) A SYRINGE BODY HAVING FLUID PASSAGES AND ADAPTED TO BE SHIFTED FROM AN INOPERATIVE POSITION TO AN OPERATIVE POSITION FOR UTILIZATION OF THE FLUID; (B) SWITCH MEANS CARRIED BY THE SYRINGE BODY, SAID SWITCH MEANS INCLUDING A SINGLE ACTUATING MEMBER FOR ACTUATING EITHER OF TWO SWITCHES OR BOTH SWITCHES SIMULTANEOUSLY; (C) FLUID VALVE MEANS IN THE DENTAL UNIT; (D) MEANS IN THE DENTAL UNIT OPENING AND CLOSING SAID FLUID VALVE MEANS UPON ACTUATION OF SAID SWITCH MEANS; AND (E) MANUALLY OPERATED MEANS ON THE SYRINGE BODY FOR ACTUATING SAID SWITCH MEANS TO DISCHARGE FLUID FROM SAID SYRINGE.
Claim 2
Dependent Claim
120 words
A SYRINGE ASSEMBLY FOR USE IN DENTAL OPERATIONS ADAPTED TO BE CARRIED BY AND WITHIN A CENTAL UNIT COMPRISING THE COMBINATION OF: (A) A SYRINGE BODY HAVING FLUID PASSAGES AND ADAPTED TO BE SHIFTED FROM AN INOPERATIVE POSITION TO AN OPERATIVE POSITION FOR UTILIZATION OF THE FLUID; (B) SWITCH MEANS CARRIED BY THE SYRINGE BODY, SAID SWITCH MEANS INCLUDING A SINGLE ACTUATING MEMBER FOR ACTUATING EITHER OF TWO SWITCHES OR BOTH SWITCHES SIMULTANEOUSLY; (C) FLUID VALVE MEANS IN THE DENTAL UNIT; (D) MEANS IN THE DENTAL UNIT OPENING AND CLOSING SAID FLUID VALVE MEANS UPON ACTUATION OF SAID SWITCH MEANS; AND (E) MANUALLY OPERATED MEANS ON THE SYRINGE BODY FOR ACTUATING SAID SWITCH MEANS TO DISCHARGE FLUID FROM SAID SYRINGE.
References Cited (Backward Citations)
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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) | 1971-07-23 | 1972-01-22 | 1972-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-23 | 1976-01-22 | 1976-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-23 | 1980-01-22 | 1980-07-23 | $7700.00 | Window Closed / Lapsed |