US3118450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental instrument for electrochemical therapy
Assignee: Individual
•
Filing: 1961-12-15
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Granted: 1964-01-21
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Expires: 1981-12-15
Abstract
No abstract record available.
Inventors
- 👤 Stephen T Freeman
- 👤 Leifman Harvey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:41
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/18; A61N1/20; A61N1/30; A61N1/303; A61C; A61C19/00; A61C19/06; A61C19/063
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
90 words
AN APPLIANCE FOR USE IN DENTAL ELECTROCHEMICAL THERAPY, COMPRISING A CURVED TROUGH-SHAPED INSULATED BODY DEFINED BY AN ARCUATE FLAT BOTTOM WALL JOINED AT OPPOSITE CURVED EDGES BY UPSTANDING ARCUATE INNER AND OUTER WALLS, AN ELONGATED FLAT HANDLE EXTENDING OUTWARDLY FROM SAID OUTER WALL PARALLEL TO SAID BOTTOM WALL, SAID BODY BEING ADAPTED TO CONTAIN A QUANTITY OF ELECTROLYTE, AN ELECTRODE PLATE IN SAID BODY ADJACENT TO SAID BOTTOM WALL, A PERFORATED INSULATED PLATE IN SAID BODY SPACED FROM AND PARALLEL TO SAID ELECTRODE PLATE, A CONDUCTIVE PLATE OUTSIDE OF SAID
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) | 1967-01-20 | 1967-07-22 | 1968-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-20 | 1971-07-22 | 1972-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-20 | 1975-07-22 | 1976-01-21 | $7700.00 | Window Closed / Lapsed |