US3559226A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tooth brush for interproximal areas
Assignee: ALABAMA MEDICAL CENTER FO, University of
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Filing: 1968-05-31
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Granted: 1971-02-02
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Expires: 1988-05-31
Abstract
Abstract A TOOTH BRUSH FOR INTERPROXIMAL AREAS HAVING ELONGATED WIRE MEMBERS TWISTED ON EACH OTHER WITH RADIALLY EXTENDING BRISTLES FIXEDLY SECURED IN PLACE THEREBETWEEN. A LATERALLY OPENING PASSAGEWAY IS PROVIDED IN AN ELONGATED HANDLE FOR RECEIVING ENDS OF THE TWISTED WIRE MEMBERS WHICH ARE SECURED IN PLACE BY AN ADJUSTABLE RETAINING MEMBER, THE HANDLE BEING BENT TO POSITION THE WIRE MEMBERS AT AN OBTUSE ANGLE RELATIVE TO THE REMAINDER OF THE HANDLE.
Inventors
- 👤 Robert L Burns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:29
CPC Classifications
A; A46; A46B; A46B7/00; A46B7/04; A61; A61C; A61C15/00; A46B2200/00; A46B2200/10; A46B2200/1066; A46B2200/108
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) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |