US3800047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing dehydrated potato products fortified with stable vitamin c
Assignee: American Potato Co
•
Filing: 1971-10-21
•
Granted: 1974-03-26
•
Expires: 1991-10-21
Abstract
Abstract Dehydrated potato products are coated with a water solution comprising ascorbic acid or its salts, a film forming oxygen barrier, and sulfur dioxide. Upon storage in air, treated products do not discolor and vitamin activity is protected.
Inventors
- 👤 A Pulley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 18:01
CPC Classifications
A; A23; A23L; A23L19/00; A23L19/10; A23L19/12; A23L19/13
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
24 words
The process of claim 1 further characterized by drying said sprayed surfaces to remove at least in part said water from said sprayed solution.
Claim 2
Dependent Claim
32 words
The process of claim 1 in which said dehydrated potato products are selected from a group of dehydrated potato products of large particle size consisting of potato flakes, hashbrown strips, and agglomerates.
Claim 3
Dependent Claim
38 words
The process of claim 1 in which said solution comprises 8 to 20 percent by weight vitamin C, 2.2 to 5.0 percent by weight sulfite salt, and 10 to 40 percent by weight of said film-forming oxygen barrier.
References Cited (Backward Citations)
US2572761A
Cited
US2572762A
Cited
US2583686A
Cited
US2709657A
Cited
US2681285A
Cited
US2980543A
Cited
US3027264A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-25 | 1977-09-24 | 1978-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-25 | 1981-09-24 | 1982-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-25 | 1985-09-24 | 1986-03-26 | $7700.00 | Window Closed / Lapsed |