US2524399A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cellulose treated with di-vinyl sulfone to shrinkproof
Assignee: Uniroyal Inc
•
Filing: 1948-07-07
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Granted: 1950-10-03
•
Expires: 1968-07-07
Abstract
No abstract record available.
Inventors
- 👤 Dwight L Schoene
- 👤 Victor S Chambers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:07
CPC Classifications
C; C08; C08B; C08B11/00; C08B11/02; C08B11/04; D; D06; D06M; D06M13/00; D06M13/244; D06M13/248; D06M13/272; D06M13/278; Y; Y10; Y10S; Y10S8/00; Y10S8/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
20 words
A METHOD WHICH COMPRISES CONTACTING AND CHEMICALLY COMBINING CELLULOSE AND DERIVATIVES OF CELLULOSE CONTAINING CELLULOSIC HYDROXYL GROUPS WITH DIVINYL SULFONE.
Claim 2
Independent Claim
20 words
A METHOD WHICH COMPRISES CONTACTING AND CHEMICALLY COMBINING CELLULOSE AND DERIVATIVES OF CELLULOSE CONTAINING CELLULOSIC HYDROXYL GROUPS WITH DIVINYL SULFONE.
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) | 1953-10-02 | 1954-04-03 | 1954-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-02 | 1958-04-03 | 1958-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-02 | 1962-04-03 | 1962-10-03 | $7700.00 | Window Closed / Lapsed |