US2544071A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diethylenetrimelamine and method
Assignee: —
•
Filing: —
•
Granted: 1951-03-06
•
Expires: 1968-03-06
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:05
CPC Classifications
C; C07; C07D; C07D403/00; C07D403/14; C07D251/00; C07D251/02; C07D251/12; C07D251/26; C07D251/40; C07D251/54; C07D401/00; C07D401/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
DIETHYLENETRIMELAMINE, THE FORMULA FOR WHICH IS
Claim 2
Dependent Claim
6 words
DIETHYLENETRIMELAMINE, THE FORMULA FOR WHICH IS
References Cited (Backward Citations)
US2392607A
Cited
CH106401A
Cited
CH106397A
Cited
CH183196A
Cited
US2223930A
Cited
US2306439A
Cited
US2295574A
Cited
US2368451A
Cited
US2294873A
Cited
US2338493A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-05 | 1954-09-04 | 1955-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-05 | 1958-09-04 | 1959-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-05 | 1962-09-04 | 1963-03-06 | $7700.00 | Window Closed / Lapsed |