US2569428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bis-oxazolines
Assignee: Rohm and Haas Co
•
Filing: 1950-07-22
•
Granted: 1951-09-25
•
Expires: 1970-07-22
Abstract
No abstract record available.
Inventors
- 👤 Stanley P Rowland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:53
CPC Classifications
C; C07; C07D; C07D263/00; C07D263/02; C07D263/08; C07D263/10; C07D263/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
BIS-OXAZOLINES HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
5 words
BIS-OXAZOLINES HAVING THE GENERAL FORMULA
References Cited (Backward Citations)
No citation records indexed.
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 |