US2681365A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nu-(3,4-dichlorobenzyl)-nu-(n-dodecyl)-nu,nu-di-(2-hydroxyethyl) ammonium chloride and preparation thereof
Assignee: STWB Inc
•
Filing: 1952-06-02
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Granted: 1954-06-15
•
Expires: 1972-06-02
Abstract
No abstract record available.
Inventors
- 👤 Louis L Hallock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:59
CPC Classifications
A; A01; A01N; A01N33/00; A01N33/02; A01N33/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
N-(3,4-DICHLOROBENZYL) -N-(N-DODECYL)-N,NDI-(2-HYDROXYETHYL) AMMONIUM CHLORIDE, HAVING THE FORMULA
Claim 2
Dependent Claim
7 words
N-(3,4-DICHLOROBENZYL) -N-(N-DODECYL)-N,NDI-(2-HYDROXYETHYL) AMMONIUM CHLORIDE, HAVING THE FORMULA
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) | 1957-06-14 | 1957-12-14 | 1958-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-14 | 1961-12-14 | 1962-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-14 | 1965-12-14 | 1966-06-15 | $7700.00 | Window Closed / Lapsed |