US2801242A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of distarch phosphate and the resulting product
Assignee: Corn Products Refining Co
•
Filing: 1954-08-06
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Granted: 1957-07-30
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Expires: 1974-08-06
Abstract
No abstract record available.
Inventors
- 👤 Ralph W Kerr
- 👤 Jr Frank C Cleveland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:09
CPC Classifications
C; C08; C08B; C08B31/00; C08B31/003; C08B31/02; C08B31/06; C08B31/066
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A PROCESS FOR MAKING DISTARCH PHOSPHATE WHICH COMPRISES TREATING UNSWOLLEN GRANULE STARCH IN AQUEOUS SLURRY WITH A WATER SOLUBLE SALT FROM THE GROUP CONSISTING OF METAPHOSPHATES AND POLYMETAPHOSPHATES AT A TEMPERATURE SUFFICIENTLY LOW TO MAINTAIN THE STARCH IN THE UNSWOLLEN GRANULE STATE FOR A TIME TO EFFECT THE DESIRED DEGREE
Claim 2
Dependent Claim
50 words
A PROCESS FOR MAKING DISTARCH PHOSPHATE WHICH COMPRISES TREATING UNSWOLLEN GRANULE STARCH IN AQUEOUS SLURRY WITH A WATER SOLUBLE SALT FROM THE GROUP CONSISTING OF METAPHOSPHATES AND POLYMETAPHOSPHATES AT A TEMPERATURE SUFFICIENTLY LOW TO MAINTAIN THE STARCH IN THE UNSWOLLEN GRANULE STATE FOR A TIME TO EFFECT THE DESIRED DEGREE
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) | 1960-07-29 | 1961-01-28 | 1961-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-29 | 1965-01-28 | 1965-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-29 | 1969-01-28 | 1969-07-30 | $7700.00 | Window Closed / Lapsed |