Patent US1717234A successfully refreshed from Google Patents.
US2597011A
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Preparation of starch sponge
Assignee: United States Department of Agriculture
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Filing: 1950-07-28
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Granted: 1952-05-20
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Expires: 1970-07-28
Abstract
No abstract record available.
Inventors
- 👤 Majel M Macmasters
- 👤 Virginia E Hoaglund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:05
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/28; A; A61; A61L; A61L15/00; A61L15/16; A61L15/22; A61L15/28; A61L15/42; A61L15/425; C08J2201/00; C08J2201/04; C08J2201/052; C08J2201/0524; C08J2303/00; C08J2303/02
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) | 1955-05-20 | 1955-11-19 | 1956-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-20 | 1959-11-19 | 1960-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-20 | 1963-11-19 | 1964-05-20 | $7700.00 | Window Closed / Lapsed |