US3624907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Devices for the rational washing of tooth root canals with simultaneous suction of the outflowing liquid and related improved devices
Assignee: Individual
•
Filing: 1969-06-05
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Granted: 1971-12-07
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Expires: 1989-06-05
Abstract
Abstract THIS INVENTION RELATES TO AN IMPROVEMENT IN DEVICE USED IN TREATMENT OF TEETH, PARTICULARLY IN WORK ON ROOT CANALS. THE DEVICE SERVES TO SUPPLY A STREAM OF FLUID FOR THE PURPOSE OF WASHING OUT THE ROOT CANAL OR TREATING IT WITH A MEDICAMENT AND ALSO IS CONNECTED TO A VACUUM FORCE SO THAT THE FLUID CAN BE REMOVED AS RAPIDLY AS IT IS SUPPLIED. THE HEAD OF THE DEVICE, CONSISTING OF ONE TUBE WITH CLEARANCE INSIDE ANOTHER IS STUNDY, BUT YET IN SMALL ENOUGH IN CROSS-SECTION FOR INSERTION DIRECTLY INTO THE ROOT CANAL.
Inventors
- 👤 Michele Brass
- 👤 Ennio Brass
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:34
CPC Classifications
A; A61; A61C; A61C17/00; A61C17/02; A61C17/0208
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-06 | 1975-06-07 | 1975-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-06 | 1979-06-07 | 1979-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-06 | 1983-06-07 | 1983-12-07 | $7700.00 | Window Closed / Lapsed |