US3453259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cyclodextrin polyol ethers and their oxidation products
Assignee: Unilever Bestfoods North America
•
Filing: 1967-03-22
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Granted: 1969-07-01
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Expires: 1987-03-22
Abstract
No abstract record available.
Inventors
- 👤 Stanley M Parmerter
- 👤 Earle E Allen Jr
- 👤 David H Le Roy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:26
CPC Classifications
C; C07; C07H; C07H15/00; C07H15/02; C07H15/04; C08; C08B; C08B37/00; C08B37/0006; C08B37/0009; C08B37/0012; Y; Y10; Y10S; Y10S516/00; Y10S516/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2996551A
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US2976274A
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US3098869A
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US3236832A
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US3300474A
Cited
US3378541A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-30 | 1972-12-30 | 1973-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-30 | 1976-12-30 | 1977-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-30 | 1980-12-30 | 1981-07-01 | $7700.00 | Window Closed / Lapsed |