US3375820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for ultrasonic cleaning of teeth
Assignee: Cavitron Corp
•
Filing: 1965-12-15
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Granted: 1968-04-02
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Expires: 1985-12-15
Abstract
No abstract record available.
Inventors
- 👤 Kuris Arthur
- 👤 Balamuth Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:34
CPC Classifications
A; A61; A61C; A61C17/00; A61C17/16; A61C17/20; B; B29; B29L; B29L2031/00; B29L2031/42; B29L2031/425
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
46 words
A METHOD OF CLEANING TEETH IN THE HUMAN MOUTH SUITABLE FOR REGULAR PERSONAL HYGIENIC CARE, COMPRISING THE STEPS OF POSITIONING A BRUSH MEMBER IN THE MOUTH ADJACENT THE TEETH TO BE CLEANED IN THE PRESENCE OF A DENTIFRICE, MANUALLY MOVING SAID BRUSH ELEMENT ACROSS THE SUR-
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) | 1971-04-02 | 1971-10-02 | 1972-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-02 | 1975-10-02 | 1976-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-02 | 1979-10-02 | 1980-04-02 | $7700.00 | Window Closed / Lapsed |