US3792152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized phosphate and dentifrice compositions and process for producing same
Assignee: Monsanto Co
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Filing: 1971-11-12
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Granted: 1974-02-12
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Expires: 1991-11-12
Abstract
Abstract PHOSPHATE SALTS OF METAL OF GROUP II OF THE PERIODIC TABLE, ESPECIALLY ALKALINE-EARTH METAL SALTS SUCH AS DICALCIUM PHOSPHATE, ARE STABILIZED AGAINST HYDROLYSIS BY THE INCORPORATION THEREIN FO A PHOSPHORIC ACID OF THE GENERAL WHEREIN N IS FROM 1 TO 10 OR A WATER SOLUBLE SALT THEREOF. ((HO-)2-P(=O)-CH2-)2-N-(CH2)N-N(-CH2-P(=O)(-OH)-OH)2
Inventors
- 👤 K Kim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:04
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/55; A61Q; A61Q11/00
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) | 1977-02-11 | 1977-08-13 | 1978-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-11 | 1981-08-13 | 1982-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-11 | 1985-08-13 | 1986-02-12 | $7700.00 | Window Closed / Lapsed |