US2958665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-ionic surface-active gel compositions and preparation thereof
Assignee: GAF Chemicals Corp
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Filing: 1957-07-24
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Granted: 1960-11-01
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Expires: 1977-07-24
Abstract
No abstract record available.
Inventors
- 👤 Stefcik Andrew
- 👤 Burnard John Wayne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:52
CPC Classifications
A; A61; A61Q; A61Q11/00; A01; A01N; A01N25/00; A01N25/30; A61K; A61K8/00; A61K8/02; A61K8/04; A61K8/042; A61K8/18; A61K8/30; A61K8/40; A61K8/41; A61Q5/00; A61Q5/02; B; B01; B01J; B01J13/00; B01J13/0073; B01J13/0082; C; C10; C10L; C10L7/00; C10L7/02; C11; C11D; C11D17/00; C11D17/0008; C11D17/003; C11D3/00; C11D3/16; C11D3/26; C11D3/32; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23G; C23G1/00; C23G1/02; C23G1/04; C23G1/06; F; F16; F16D; F16D7/00; F16D7/02; C07; C07C; C07C2603/00; C07C2603/02; C07C2603/04; C07C2603/22; C07C2603/26; Y; Y10; Y10S; Y10S260/00; Y10S260/15; Y10S260/19; Y10S516/00; Y10S516/01; Y10S516/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
19 words
A THIXOTROPIC COMPOSITION COMPRISING 80-97% BY WEIGHT OF A LIQUID NONIONIC SURFACE ACTIVE AGENT HAVING THE FOLLOWING GENERAL FORMULA:
Claim 2
Dependent Claim
19 words
A THIXOTROPIC COMPOSITION COMPRISING 80-97% BY WEIGHT OF A LIQUID NONIONIC SURFACE ACTIVE AGENT HAVING THE FOLLOWING GENERAL FORMULA:
References Cited (Backward Citations)
US1659149A
Cited
GB697315A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-01 | 1964-05-02 | 1964-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-01 | 1968-05-02 | 1968-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-01 | 1972-05-02 | 1972-11-01 | $7700.00 | Window Closed / Lapsed |