Patent US3553840A successfully refreshed from Google Patents.
US3553840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mobile quick set-up self-contained orthodontic unit
Assignee: Individual
•
Filing: 1968-10-02
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Granted: 1971-01-12
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Expires: 1988-10-02
Abstract
Abstract THE PRESENT DISCLOSURE IS DIRECTED TO A SELF-CONTAINED MOBILE QUICK SET-UP ORTHODONTIC UNIT NOT REQUIRING ANY EXTERNAL PLUMBING CONNECTIONS AND WHICH REQUIRES A SINGLE 110 V. AC CONVENTIONAL PLUG ELECTRICAL LEAD AS ITS ONLY EXTERNAL CONNECTION. THE UNIT HAS A SPRING MOUNTED AIR COMPRESSOR MOTOR DRIVEN UNDER PRESSURE STATIC CONTROL WITH A COMPRESSED AIR RESERVOIR TO MAINTAIN A VOLUME OF COMPRESSED AIR FOR A THREE-WAY SYRINGE AND TO PRESSURIZE A WATER TANK TO ALSO SUPPLY THE SYRINGE. THE UNIT ALSO CONTAINS A VACUUM TANK AND MEANS FOR MAINTAINING THE DESIRED VACUUM. MOBILITY IS ATTAINED BY WHEEL MOUNTING THE CABINET STRUCTURE CONTAINING THE ABOVE UNITS.
Inventors
- 👤 James P Bordelon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:22
CPC Classifications
A; A61; A61G; A61G15/00; A61G15/14
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) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |