Patent US2542506A successfully refreshed from Google Patents.
US3304609A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental equipment stand
Assignee: Individual
•
Filing: 1966-02-16
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Granted: 1967-02-21
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Expires: 1986-02-16
Abstract
No abstract record available.
Inventors
- 👤 Horowitz Norman
- 👤 Spigner Philip
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:59
CPC Classifications
A; A61; A61G; A61G15/00; A61G15/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A DENTAL UNIT ADAPTED FOR USE ADJACENT A DENTAL CHAIR AND COMPRISING AN INSTRUMENT HEAD HAVING ELECTRICALLY POWERED INSTRUMENT MEANS AND AIR AND WATER APPLIANCES, AND MOUNTING MEANS ADJUSTABLY SUPPORTING SAID INSTRUMENT HEAD FOR VERTICAL AND ROTATIONAL MOVEMENT RELATIVE TO SAID MOUNTING MEANS AND SUCH DENTAL CHAIR AND FOR HORIZONTAL MOVEMENT RELATIVE TO SUCH DENTAL CHAIR, SAID MOUNTING MEANS INCLUDING MOTOR-DRIVEN ELEVATOR MEANS FOR RAISING AND LOWERING THE INSTRUMENT HEAD RELATIVE TO SAID MOUNTING MEANS AND TO SAID DENTAL CHAIR, SAID ELEVATOR MEANS INCLUDING A GENERALLY VERTICAL, HOLLOW COLUMN, SAID INSTRUMENT HEAD BEING MOUNTED ON SAID HOLLOW COLUMN FOR ROTATIONAL MOVEMENT ABOUT ITS LONGITUDINAL AXIS, SAID MOUNTING MEANS ALSO INCLUDING A MOTOR-DRIVEN HORIZONTALLY MOVABLE FLOOR-MOUNTED SUPPORT FOR SAID HOLLOW COLUMN FOR IMPARTING HORIZONTAL MOVEMENT TO SAID HOLLOW COLUMN AND INSTRUMENT HEAD RELATIVE TO SUCH DENTAL CHAIR.
Claim 2
Dependent Claim
136 words
A DENTAL UNIT ADAPTED FOR USE ADJACENT A DENTAL CHAIR AND COMPRISING AN INSTRUMENT HEAD HAVING ELECTRICALLY POWERED INSTRUMENT MEANS AND AIR AND WATER APPLIANCES, AND MOUNTING MEANS ADJUSTABLY SUPPORTING SAID INSTRUMENT HEAD FOR VERTICAL AND ROTATIONAL MOVEMENT RELATIVE TO SAID MOUNTING MEANS AND SUCH DENTAL CHAIR AND FOR HORIZONTAL MOVEMENT RELATIVE TO SUCH DENTAL CHAIR, SAID MOUNTING MEANS INCLUDING MOTOR-DRIVEN ELEVATOR MEANS FOR RAISING AND LOWERING THE INSTRUMENT HEAD RELATIVE TO SAID MOUNTING MEANS AND TO SAID DENTAL CHAIR, SAID ELEVATOR MEANS INCLUDING A GENERALLY VERTICAL, HOLLOW COLUMN, SAID INSTRUMENT HEAD BEING MOUNTED ON SAID HOLLOW COLUMN FOR ROTATIONAL MOVEMENT ABOUT ITS LONGITUDINAL AXIS, SAID MOUNTING MEANS ALSO INCLUDING A MOTOR-DRIVEN HORIZONTALLY MOVABLE FLOOR-MOUNTED SUPPORT FOR SAID HOLLOW COLUMN FOR IMPARTING HORIZONTAL MOVEMENT TO SAID HOLLOW COLUMN AND INSTRUMENT HEAD RELATIVE TO SUCH DENTAL CHAIR.
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) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |