US3584112A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental-plaque-tracing means and method for preparing the same
Assignee: University of Kentucky Research Foundation
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Filing: 1969-02-25
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Granted: 1971-06-08
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Expires: 1989-02-25
Abstract
Abstract AN EXPENDIBLE APPLICATOR FOR USE IN TRACTING DENTAL PLAQUE CONTAINS A PREDETERMINED AMOUNT OF WATER-SOLUBLE DYE. A METHOD FOR PREPARING THE APPLICATOR AND THE SOLUTION WITH WHICH IT IS IMPREGNATED, IS DISCOLOSED.
Inventors
- 👤 Alvin L Morris
- 👤 Robert H Spedding
- 👤 Tom M Samuels
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:09
CPC Classifications
A; A61; A61Q; A61Q11/00; A61K; A61K6/00; A61K6/80; A61K6/884; A61K8/00; A61K8/18; A61K8/30; A61K8/46; A61K8/466; A61K2800/00; A61K2800/40; A61K2800/42; A61K2800/43
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) | 1974-06-07 | 1974-12-07 | 1975-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-07 | 1978-12-07 | 1979-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-07 | 1982-12-07 | 1983-06-08 | $7700.00 | Window Closed / Lapsed |