US3330732A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaning and polishing agent for dental prophylaxis
Assignee: Indiana University Foundation Inc
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Filing: 1964-06-11
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Granted: 1967-07-11
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Expires: 1984-06-11
Abstract
No abstract record available.
Inventors
- 👤 Joseph C Muhler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:09
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/20; A; A61; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/28; A61Q; A61Q11/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
AN AGENT FOR BOTH CLEANING AND POLISHING TEETH COMPRISING AS ITS ESSENTIAL INGREDIENT UNCOATED ZIRCONIUM SILICATE, ZRSIO4, HAVING A DISTRIBUTION OF MEAN DIAMETER PARTICLE SIZES IN A FIRST LEVEL OF UP TO ABOUT 20 MICRONS, IN A SECOND LEVEL OF FROM ABOUT 20 MICRONS UP TO ABOUT 50 MICRONS, AND IN A THIRD LEVEL OF FROM ABOUT 50 MICRONS UP TO ABOUT 70 MICRONS, THE THREE LEVELS BEING COMBINED IN A PERCENTAGE RATIO RANGE OF ABOUT 10-50% OF THE FIRST LEVEL, 5-25% OF THE THIRD LEVEL, AND THE BALANCE OF THE SECOND LEVEL.
Claim 2
Dependent Claim
93 words
AN AGENT FOR BOTH CLEANING AND POLISHING TEETH COMPRISING AS ITS ESSENTIAL INGREDIENT UNCOATED ZIRCONIUM SILICATE, ZRSIO4, HAVING A DISTRIBUTION OF MEAN DIAMETER PARTICLE SIZES IN A FIRST LEVEL OF UP TO ABOUT 20 MICRONS, IN A SECOND LEVEL OF FROM ABOUT 20 MICRONS UP TO ABOUT 50 MICRONS, AND IN A THIRD LEVEL OF FROM ABOUT 50 MICRONS UP TO ABOUT 70 MICRONS, THE THREE LEVELS BEING COMBINED IN A PERCENTAGE RATIO RANGE OF ABOUT 10-50% OF THE FIRST LEVEL, 5-25% OF THE THIRD LEVEL, AND THE BALANCE OF THE SECOND LEVEL.
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) | 1970-07-10 | 1971-01-09 | 1971-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-10 | 1975-01-09 | 1975-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-10 | 1979-01-09 | 1979-07-11 | $7700.00 | Window Closed / Lapsed |