US3421920A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tablet coating containing a linear poly-1,3-beta-glucoside
Assignee: Celanese Corp
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Filing: 1965-05-25
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Granted: 1969-01-14
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Expires: 1985-05-25
Abstract
No abstract record available.
Inventors
- 👤 Pravin Sheth
- 👤 Leon Lachman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:50
CPC Classifications
A; A23; A23G; A23G3/00; A23G3/34; A23G3/343; A23G3/02; A23G3/20; A23L; A23L25/00; A23L25/20; A23L25/25; A61; A61K; A61K9/00; A61K9/20; A61K9/28; A61K9/2806; A61K9/282; A61K9/2826; A61K9/2833; A61K9/286; A23G2200/00; A23G2200/06
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) | 1972-01-14 | 1972-07-15 | 1973-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-14 | 1976-07-15 | 1977-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-14 | 1980-07-15 | 1981-01-14 | $7700.00 | Window Closed / Lapsed |