US3552018A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dowel orienting apparatus useful in dentistry
Assignee: Individual
•
Filing: 1969-04-10
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Granted: 1971-01-05
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Expires: 1989-04-10
Abstract
Abstract TO A BASE MEMBER ADAPTED TO RECEIVE AND SUPPORT AN UPWARDLY OPEN DENTAL IMPRESSION, A CARRIER MEMBER IS KEYED FOR SEPARATION BY RELATIVE VERTICAL MOVEMENT. AN ARCHED ELEMENT HAS A FIRST LEG POSITIONED IN DEPENDING RELATIONSHIP TO THE DENTAL IMPRESSION WHICH LEG IS ADAPTED TO SEPARABLY SUSPEND A DOWEL ORIENTED RELATIVE A TOOTH AXIS OF SAID IMPRESSION. A SECOND LEG OF THE ARCHED ELEMENT IS RECEIVED AND SUPPORTED IN A MASS OF PLASTIC MATERIAL ON THE CARRIER MEMBER.
Inventors
- 👤 Eric H Zahn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:09
CPC Classifications
A; A61; A61C; A61C9/00; A61C9/002
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 |