US2569408A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quaternary salts-alkylbenzyl alkyl dimethyl ammonium halides
Assignee: Rohm and Haas Co
•
Filing: 1949-06-29
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Granted: 1951-09-25
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Expires: 1969-06-29
Abstract
No abstract record available.
Inventors
- 👤 Benneville Peter L De
- 👤 Louis H Bock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:57
CPC Classifications
A; A01; A01N; A01N31/00; A01N31/08; A01N31/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
9 words
AS A NEW CHEMICAL SUBSTANCE, COMPOUNDS OF THE FORMULA
Claim 2
Dependent Claim
9 words
AS A NEW CHEMICAL SUBSTANCE, COMPOUNDS OF 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) | 1954-09-24 | 1955-03-26 | 1955-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-24 | 1959-03-26 | 1959-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-24 | 1963-03-26 | 1963-09-25 | $7700.00 | Window Closed / Lapsed |