Patent US1918338A successfully refreshed from Google Patents.
Patent US2925316A successfully refreshed from Google Patents.
US2925316A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wetting agents for aqueous alkalizing liquids
Assignee: Saul and Co
•
Filing: 1954-02-24
•
Granted: 1960-02-16
•
Expires: 1974-02-24
Abstract
No abstract record available.
Inventors
- 👤 Hofer Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:32
CPC Classifications
C; C07; C07D; C07D303/00; C07D303/02; C07D303/12; C07D303/18; C07D303/20; C07D303/22; C07C; C07C309/00; C07C43/00; C07C43/02; C07C43/03; C07C43/04; C07C43/13; C11; C11D; C11D1/00; C11D1/02; C11D1/12; C11D1/16; D; D06; D06M; D06M11/00; D06M11/32; D06M11/36; D06M11/38; D06M13/00; D06M13/244; D06M13/248; D06M13/256; D06M15/00; D06M15/19; D06M15/37; D06M15/53
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
34 words
AN ALKALINE SOLUTION FOR TREATING TEXTILE FIBERS CONSISTING ESSENTIALLY OF AN AQUEOUS CAUSTIC ALKALI SOLUTION OF 20 TO 40* BE CONTAINING DISSOLVED THEREIN LESS THAN 2% BY VOLUME OF A COMPOUND OF THE FORMULA
References Cited (Backward Citations)
US1985747A
Cited
US2094489A
Cited
US1897741A
Cited
US2010176A
Cited
US2033125A
Cited
US2427577A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-15 | 1963-08-17 | 1964-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-15 | 1967-08-17 | 1968-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-15 | 1971-08-17 | 1972-02-16 | $7700.00 | Window Closed / Lapsed |