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Patent US3485651A successfully refreshed from Google Patents.
US3485651A
Expired / Lapsed
US
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Water-soluble cellulose ether or starch compositions
Assignee: Hercules LLC
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Filing: 1967-12-18
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Granted: 1969-12-23
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Expires: 1987-12-18
Abstract
No abstract record available.
Inventors
- 👤 Alexander J Ganz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:06
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/03; C08B; C08B11/00; C08B11/20; C09; C09K; C09K23/00; C09K23/14; C08J2300/00; C08J2300/10; C09K23/34
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) | 1972-12-22 | 1973-06-23 | 1973-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-22 | 1977-06-23 | 1977-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-22 | 1981-06-23 | 1981-12-23 | $7700.00 | Window Closed / Lapsed |