US3423213A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing vitamin a-fortified frozen potato products
Assignee: Vahlsing Inc
•
Filing: 1966-03-09
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Granted: 1969-01-21
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Expires: 1986-03-09
Abstract
No abstract record available.
Inventors
- 👤 Frederick H Vahlsing Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:20
CPC Classifications
A; A23; A23L; A23L33/00; A23L33/10; A23L33/15; A23L33/155; A23L19/00; A23L19/10; A23L19/12; A23L19/18
Claims Analysis
Total Claims: 0
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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) | 1972-01-21 | 1972-07-22 | 1973-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-21 | 1976-07-22 | 1977-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-21 | 1980-07-22 | 1981-01-21 | $7700.00 | Window Closed / Lapsed |