US2647125A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acylated imidazolines and method for preparing the same
Assignee: Dearborn Chemical Co
•
Filing: 1949-02-12
•
Granted: 1953-07-28
•
Expires: 1969-02-12
Abstract
No abstract record available.
Inventors
- 👤 Lewis O Gunderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:18
CPC Classifications
C; C07; C07D; C07D233/00; C07D233/04; C07D233/06; C07D233/08; C07D233/12; C07D233/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A COMPOUND HAVING THE FORMULA:
Claim 2
Dependent Claim
5 words
A COMPOUND HAVING THE FORMULA:
References Cited (Backward Citations)
GB549328A
Cited
US2200815A
Cited
US2322201A
Cited
US2461730A
Cited
US2484146A
Cited
US2568876A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-27 | 1957-01-26 | 1957-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-27 | 1961-01-26 | 1961-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-27 | 1965-01-26 | 1965-07-28 | $7700.00 | Window Closed / Lapsed |