US2947748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quaternary ammonium compounds of the ureidoalkylammonium type
Assignee: Rohm and Haas Co
•
Filing: 1955-06-30
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Granted: 1960-08-02
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Expires: 1975-06-30
Abstract
No abstract record available.
Inventors
- 👤 Ruth H Zeitschel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:55
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/46; D06M13/461; B; B01; B01J; B01J41/00; B01J41/08; B01J41/12; B01J41/13; C; C07; C07C; C07C275/00; C07C275/04; C07C275/06; C07C275/14; D06M13/35; D06M13/402; D06M13/432; D06M13/47; D06M13/477; Y; Y10; Y10S; Y10S260/00; Y10S260/15; Y10S260/19; Y10S260/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
AS A COMPOSITION OF MATTER, A QUATERNARY AMMONIUM COMPOUND HAVING THE FORMULA
Claim 2
Dependent Claim
13 words
AS A NEW COMPOSITION OF MATTER, THE QUATERNARY AMMONIUM COMPOUND 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) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |