Patent US2792404A successfully refreshed from Google Patents.
US2792404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chjochaoh
Assignee: —
•
Filing: —
•
Granted: 1957-05-14
•
Expires: 1974-05-14
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:46
CPC Classifications
C; C07; C07D; C07D233/00; C07D233/04; C07D233/28; C07D233/44; C07D233/48; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/07; Y10S516/905; Y10S516/914
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
9 words
AS NEW PRODUCTS 1-(B-HYDROXYETHYL)-2-SUBSTITUTEDAMINO-2-IMIDAZOLINE CORRESPONDING TO THE GENERAL FORMULA:
Claim 2
Dependent Claim
9 words
AS NEW PRODUCTS 1-(B-HYDROXYETHYL)-2-SUBSTITUTEDAMINO-2-IMIDAZOLINE CORRESPONDING TO THE GENERAL FORMULA:
References Cited (Backward Citations)
US2586844A
Cited
US2715633A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-05-13 | 1960-11-12 | 1961-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-13 | 1964-11-12 | 1965-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-13 | 1968-11-12 | 1969-05-14 | $7700.00 | Window Closed / Lapsed |