US2627493A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorine chewing gum process
Assignee: US Filter Wallace and Tiernan Inc
•
Filing: 1949-02-05
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Granted: 1953-02-03
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Expires: 1969-02-05
Abstract
No abstract record available.
Inventors
- 👤 Frederick G Merckel
- 👤 Reiner Laszlo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:56
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/20; A61K8/21; A61K9/00; A61K9/0012; A61K9/0053; A61K9/0056; A61K9/0058; A61Q; A61Q11/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A METHOD OF MAKING CHEWING GUM WHICH IS ADAPTED TO SUPPLY FLUORINE TO THE USER, COMPRISING TREATING A GUM COMPOSITION THAT CONTAINS MATERIAL WHICH IS ADAPTED TO CONVERT A SOLUBLE FLUORIDE TO INSOLUBLE FORM, TO RENDER SAID COMPOSITION SUBSTANTIALLY INERT TO SOLUBLE FLUORIDE, BY APPLYING TO THE COMPOSITION AN ACID CAPABLE OF DISSOLVING COMBINED CALCIUM, SEPARATING SOLUBLE MATERIALS REMAINING AFTER SAID TREATMENT, FROM THE GUM COMPOSITION, AND THEREAFTER MIXING A SMALL AMOUNT OF A SOLUBLE FLUORIDE WITH SAID GUM COMPOSITION, THE SOLUBLE FLUORIDE BEING ADDED IN QUANTITY TO PROVIDE A PROPHYLACTICALLY EFFECTIVE BUT NON-TOXIC AMOUNT OF FLUORINE IN THE CHEWING GUM.
Claim 2
Independent Claim
101 words
A METHOD OF MAKING CHEWING GUM WHICH IS ADAPTED TO SUPPLY FLUORINE TO THE USER, COMPRISING TREATING A GUM COMPOSITION THAT CONTAINS MATERIAL WHICH IS ADAPTED TO CONVERT A SOLUBLE FLUORIDE TO INSOLUBLE FORM, TO RENDER SAID COMPOSITION SUBSTANTIALLY INERT TO SOLUBLE FLUORIDE, BY APPLYING TO THE COMPOSITION AN ACID CAPABLE OF DISSOLVING COMBINED CALCIUM, SEPARATING SOLUBLE MATERIALS REMAINING AFTER SAID TREATMENT, FROM THE GUM COMPOSITION, AND THEREAFTER MIXING A SMALL AMOUNT OF A SOLUBLE FLUORIDE WITH SAID GUM COMPOSITION, THE SOLUBLE FLUORIDE BEING ADDED IN QUANTITY TO PROVIDE A PROPHYLACTICALLY EFFECTIVE BUT NON-TOXIC AMOUNT OF FLUORINE IN THE CHEWING GUM.
References Cited (Backward Citations)
US2218172A
Cited
US2449184A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-03 | 1956-08-04 | 1957-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-03 | 1960-08-04 | 1961-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-03 | 1964-08-04 | 1965-02-03 | $7700.00 | Window Closed / Lapsed |