US3141905A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cation-active surface active quaternary ammonium compounds
Assignee: Witco Corp
•
Filing: 1963-04-29
•
Granted: 1964-07-21
•
Expires: 1983-04-29
Abstract
No abstract record available.
Inventors
- 👤 Longley Kermit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:47
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10; A; A01; A01N; A01N25/00; A01N25/30; A01N33/00; A01N33/02; A01N33/12; C09; C09K; C09K3/00; C09K3/16
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
8 words
A QUATERNARY AMMONIUM COMPOUND CORRESPONDING TO THE FORMULA
Claim 2
Dependent Claim
8 words
A QUATERNARY AMMONIUM COMPOUND CORRESPONDING TO THE FORMULA
Claim 3
Dependent Claim
8 words
A QUATERNARY AMMONIUM COMPOUND CORRESPONDING TO THE FORMULA
Claim 4
Dependent Claim
8 words
A QUATERNARY AMMONIUM COMPOUND CORRESPONDING TO THE FORMULA
References Cited (Backward Citations)
US2759975A
Cited
US2876263A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-21 | 1968-01-20 | 1968-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-21 | 1972-01-20 | 1972-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-21 | 1976-01-20 | 1976-07-21 | $7700.00 | Window Closed / Lapsed |