Patent US840549A successfully refreshed from Google Patents.
Patent US3552022A successfully refreshed from Google Patents.
US3552022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for cleaning or polishing of teeth
Assignee: Individual
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Filing: 1968-07-05
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Granted: 1971-01-05
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Expires: 1988-07-05
Abstract
Abstract A DENTAL MOTOR-DRIVEN TOOL IS DESCRIBED BY MEANS OF WHICH THE APPROXIMATIVE TEETH FACES AT ALL TEETH INTERSPACES CAN BE CLEANED OR POLISHED. THE TOOL HAS A CONICAL STEM PORTION THAT CAN EASILY BE INSERTED IN AND REMOVED FROM A HANDLE WHEREIN A RECIPROCATING SOCKET THEREFOR IS PLACED. THE OPERATING END OF THE TOOL IS WEDGE-LIKE AND POINTED, TWO BROAD SIDES BEING ROUGH IN ORDER TO ABRADE THE TEETH FACES AND THE THIRD FACE BEING NARROW AND SMOOTH IN ORDER NOT TO HURT THE GUMS.
Inventors
- 👤 Per Axel Torbjorn Axelsson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:49
CPC Classifications
A; A61; A61C; A61C1/00; A61C1/08; A61C1/18; A61C1/185; A61C15/00; A61C17/00; A61C17/16; A61C17/18
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) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |