US2529923A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2-(2-hydroxyethoxy) ethylamine
Assignee: Eastman Kodak Co
•
Filing: 1946-10-01
•
Granted: 1950-11-14
•
Expires: 1966-10-01
Abstract
No abstract record available.
Inventors
- 👤 Joseph B Dickey
- 👤 James G Mcnally
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:29
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
2 words
2-(HYDROXYETHOXY) ETHYLAMINE.
Claim 2
Dependent Claim
2 words
2-(HYDROXYETHOXY) ETHYLAMINE.
Claim 3
Dependent Claim
27 words
A PROCESS FOR PREPARING 2-(2-HYDROXYETHOXY) ETHYLAMINE COMPRISING CONDENSING AMMONIA WITH DIETHYLENE GLYCOL, AT A TEMPERATURE OF FROM 160 TO 400*C., IN THE PRESENCE OF A HYDROGENATION CATALYST.
Claim 4
Dependent Claim
27 words
A PROCESS FOR PREPARING 2-(2-HYDROXYETHOXY) ETHYLAMINE COMPRISING CONDENSING AMMONIA WITH DIETHYLENE GLYCOL, AT A TEMPERATURE OF FROM 160 TO 400*C., IN THE PRESENCE OF A HYDROGENATION CATALYST.
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) | 1953-11-13 | 1954-05-15 | 1954-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-13 | 1958-05-15 | 1958-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-13 | 1962-05-15 | 1962-11-14 | $7700.00 | Window Closed / Lapsed |