US2422573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Xanthated cellulose derivative and process of coating with same
Assignee: LILICNFELD PATENTS Inc
•
Filing: 1942-12-22
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Granted: 1947-06-17
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Expires: 1962-12-22
Abstract
No abstract record available.
Inventors
- 👤 Lilienfeld Antonie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:05
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/01; D06M15/03; D06M15/05; C; C08; C08B; C08B11/00; C08B11/02; C08B11/04; C08B11/08; C08B11/10; C08B11/12; C08B11/20; C08B15/00; C08B15/02; D06M15/07; D06M15/09; D06P; D06P1/00; D06P1/0036
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1950664A
Cited
US2157530A
Cited
US2108455A
Cited
US2087237A
Cited
US2120417A
Cited
US2236544A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-06-16 | 1950-12-16 | 1951-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-06-16 | 1954-12-16 | 1955-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-06-16 | 1958-12-16 | 1959-06-17 | $7700.00 | Window Closed / Lapsed |