US3402170A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing starch-based polyhydroxypolyoxyalkylene ethers
Assignee: Olin Corp
•
Filing: 1965-03-26
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Granted: 1968-09-17
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Expires: 1985-03-26
Abstract
No abstract record available.
Inventors
- 👤 Fuzesi Stephen
- 👤 Leonard J Klahs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:04
CPC Classifications
C; C08; C08B; C08B31/00; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/48; C08G18/487; C08G18/4883
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3165508A
Cited
US3277076A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-17 | 1972-03-18 | 1972-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-17 | 1976-03-18 | 1976-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-17 | 1980-03-18 | 1980-09-17 | $7700.00 | Window Closed / Lapsed |