US3759921A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of suppressing immuneresponse with 1 substituted-3-(2 pyrimidyl)ureas
Assignee: Eli Lilly and Co
•
Filing: 1971-06-09
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Granted: 1973-09-18
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Expires: 1991-06-09
Abstract
Abstract 1-Substituted-3-(2-pyrimidyl)ureas as immunosuppressants and as antiviral agents.
Inventors
- 👤 C Paget
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:10
CPC Classifications
C; C07; C07D; C07D239/00; C07D239/02; C07D239/24; C07D239/28; C07D239/32; C07D239/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
The method of claim 1 wherein the active agent is 1-(2-pyrimidyl)-3-(m-(trifluoromethyl)phenyl)urea.
Claim 2
Dependent Claim
11 words
The method of claim 1 wherein the active agent is 1-(2-pyrimidyl)-3-(p-nitrophenyl)urea.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-17 | 1977-03-19 | 1977-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-17 | 1981-03-19 | 1981-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-17 | 1985-03-19 | 1985-09-18 | $7700.00 | Window Closed / Lapsed |