US2427328A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pregelatinized waxy starch
Assignee: Cerestar USA Inc
•
Filing: 1942-07-03
•
Granted: 1947-09-09
•
Expires: 1962-07-03
Abstract
No abstract record available.
Inventors
- 👤 Herman H Schopmeyer
- 👤 George E Felton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:55
CPC Classifications
C; C08; C08B; C08B30/00; C08B30/12; C08B30/14
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1105567A
Cited
US2070576A
Cited
US2216179A
Cited
US2171796A
Cited
US2178235A
Cited
US2291041A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-09-08 | 1951-03-10 | 1951-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-08 | 1955-03-10 | 1955-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-08 | 1959-03-10 | 1959-09-09 | $7700.00 | Window Closed / Lapsed |