US2632766A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulfated n-hydrocarbon-substituted-alpha-hydroxycarboxylic amides
Assignee: Rohm and Haas Co
•
Filing: 1949-12-16
•
Granted: 1953-03-24
•
Expires: 1969-12-16
Abstract
No abstract record available.
Inventors
- 👤 Benneville Peter L De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:27
CPC Classifications
D; D06; D06L; D06L1/00; D06L1/12; D06L1/18
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
8 words
AS NEW CHEMICAL SUBSTANCES, COMPOUNDS OF THE FORMULA
Claim 2
Dependent Claim
8 words
AS NEW CHEMICAL SUBSTANCES, COMPOUNDS OF THE FORMULA
Claim 3
Dependent Claim
9 words
IN THE PROCESS OF PREPARING COMPOUNDS OF THE FORMULA
Claim 4
Dependent Claim
9 words
IN THE PROCESS OF PREPARING 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) | 1956-03-23 | 1956-09-22 | 1957-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-23 | 1960-09-22 | 1961-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-23 | 1964-09-22 | 1965-03-24 | $7700.00 | Window Closed / Lapsed |