Patent US2398307A successfully refreshed from Google Patents.
US2398307A
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Protein-acetone resin compositions and process of making them
Assignee: Ellis Foster Co
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Filing: 1942-11-04
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Granted: 1946-04-09
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Expires: 1962-11-04
Abstract
No abstract record available.
Inventors
- 👤 Frederick A Hessel
- 👤 John B Rust
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:52
CPC Classifications
C; C08; C08L; C08L1/00; C08L1/02; C08G; C08G6/00; C08G6/02; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3467; C08K5/3477; C08K5/3492; C08K5/34922; C08L89/00; C08L89/005; C08L89/04; C08L89/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1949-04-08 | 1949-10-08 | 1950-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-04-08 | 1953-10-08 | 1954-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-04-08 | 1957-10-08 | 1958-04-09 | $7700.00 | Window Closed / Lapsed |