US2762842A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-aryl-n'-aminoalkyl-ureas
Assignee: Novartis AG
•
Filing: 1953-06-08
•
Granted: 1956-09-11
•
Expires: 1973-06-08
Abstract
No abstract record available.
Inventors
- 👤 Hafliger Franz
- 👤 Schindler Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:30
CPC Classifications
C; C07; C07C; C07C275/00; C07C275/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
A MEMBER SELECTED FROM THE GROUP CONSISTING OF AN N-ARYL-N''AMINO-ALKYL UREA CORRESPONDING TO FORMULA
Claim 2
Dependent Claim
14 words
A MEMBER SELECTED FROM THE GROUP CONSISTING OF AN N-ARYL-N''AMINO-ALKYL UREA CORRESPONDING TO FORMULA
References Cited (Backward Citations)
US2673878A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-11 | 1960-03-12 | 1960-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-11 | 1964-03-12 | 1964-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-11 | 1968-03-12 | 1968-09-11 | $7700.00 | Window Closed / Lapsed |