US3269814A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dentifrice polishing agents
Assignee: Stauffer Chemical Co
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Filing: 1962-02-26
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Granted: 1966-08-30
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Expires: 1982-02-26
Abstract
No abstract record available.
Inventors
- 👤 Lowell E Netherton
- 👤 Reginald E Vanstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:22
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/24; A61Q; A61Q11/00; C; C01; C01B; C01B25/00; C01B25/16; C01B25/26; C01B25/45
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
90 words
AS A DENTIFRICE POLISHING AGENT AN INTRAPARTICULATE MIXTURE OF CONDENSED PHOSPHATES RESULTING FROM SUBATANTIALLY COMPLETE MOLECULAR DEHYDRATION OF A FINELY DIVIDED FEED CONSISTING OF A PHYSICAL ADMIXTURE OF BETWEEN 90% AND 99.67% OF A DIBASIC ALKALINE EARTH METAL ORTHOPHOSPHATE AND BETWEEN :.33% AND 10% OF AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF MONOCALCIUM ORTHOPHOSPHATE, CALCIUM METAPHOSPHATE, MONOMAGNESIUM ORTHOPHOSPHATE, MONOAMMONIUM ORTHOSPHOSPHATE, MONOSODIUM ORTHOPHOSPHATE, ORTHOPHOSPHORIC ACID, PYROPHOSPHORIC ACID, UREA PHOSPHATE, TETRAMMONIUM PYROPHOSPHATE, SODIUM ACID PYROPHOSPHATE, MONOPOTASSIUM ORTHOPHOSPHATE, MONOLITHIUM ORTHOPHOSPHATE, SODIUM AMMNUIM PHOSPHATE, SODIUM METAPHOSPHATE, MAGNESIUM METAPHOSPHATE AND POTASIUM METAPHOSPHATE.
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) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |