Patent US5438573A successfully refreshed from Google Patents.
US3205073A
Expired / Lapsed
US
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Non-hydroscopic potassium modified sodium aluminum acid phosphate and method of producing same
Assignee: Stauffer Chemical Co
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Filing: 1964-04-27
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Granted: 1965-09-07
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Expires: 1984-04-27
Abstract
No abstract record available.
Inventors
- 👤 Julian E Blanch
- 👤 Jr Fred Mccollough
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:44
CPC Classifications
A; A21; A21D; A21D2/00; A21D2/02; C; C01; C01B; C01B25/00; C01B25/16; C01B25/26; C01B25/45
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
AS A BAKING ACID, A NON-HYGROSCOPIC POTASSIUM MODIFIED SODIUM ALUMINUM PHOSPHATE COMPRISING SODIUM ALUMINUM PHOSPHATE TO WHICH IS CHEMICALLY BONDED AT LEAST ABOUT 0.1% AND NOT MORE THAN ABOUT 10.0% POTASSIUM, BASED ON THE TOTAL WEIGHT OF THE POTASSIUM MODIFIED SODIUM ALUMINUM PHOSPHATE.
Claim 2
Dependent Claim
43 words
AS A BAKING ACID, A NON-HYGROSCOPIC POTASSIUM MODIFIED SODIUM ALUMINUM PHOSPHATE COMPRISING SODIUM ALUMINUM PHOSPHATE TO WHICH IS CHEMICALLY BONDED AT LEAST ABOUT 0.1% AND NOT MORE THAN ABOUT 10.0% POTASSIUM, BASED ON THE TOTAL WEIGHT OF THE POTASSIUM MODIFIED SODIUM ALUMINUM PHOSPHATE.
References Cited (Backward Citations)
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |