US2528323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of treating textile mate
Assignee: —
•
Filing: —
•
Granted: 1950-10-31
•
Expires: 1967-10-31
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:54
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/325; D06M13/342; D06L; D06L4/00; D06L4/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
A PROCESS WHICH COMPRISES APPLYING TO TEXTILE MATERIALS AN AMOUNT IN THE RANGE FROM 0.0001% TO ABOUT 0.025%, BASED ON THE DRY WEIGHT OF THE TEXTILE, OF AN AMINOAROYLAMINOSTILBENE SULFONIC ACID WHICH IS FREE FROM COLOR PRODUCING GROUPS AND WHICH HAS THE FOLLOWING GENERAL FORMULA:
Claim 2
Dependent Claim
45 words
A PROCESS WHICH COMPRISES APPLYING TO TEXTILE MATERIALS AN AMOUNT IN THE RANGE FROM 0.0001% TO ABOUT 0.025%, BASED ON THE DRY WEIGHT OF THE TEXTILE, OF AN AMINOAROYLAMINOSTILBENE SULFONIC ACID WHICH IS FREE FROM COLOR PRODUCING GROUPS AND WHICH HAS THE FOLLOWING GENERAL FORMULA:
References Cited (Backward Citations)
US2089413A
Cited
US2089293A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-30 | 1954-05-01 | 1954-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-30 | 1958-05-01 | 1958-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-30 | 1962-05-01 | 1962-10-31 | $7700.00 | Window Closed / Lapsed |