Patent US2845425A successfully refreshed from Google Patents.
US2845425A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Substituted aminopyrimidines
Assignee: Eli Lilly and Co
•
Filing: 1956-10-04
•
Granted: 1958-07-29
•
Expires: 1976-10-04
Abstract
No abstract record available.
Inventors
- 👤 Calvert W Whitehead
- 👤 John J Traverso
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:32
CPC Classifications
C; C07; C07D; C07D239/00; C07D239/02; C07D239/24; C07D239/28; C07D239/32; C07D239/42; C07D239/46; C07D239/48; C07D239/69
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
22 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF A BASE AND ACID ADDITION SALTS THEREOF, SAID BASE BEING REPRESENTED BY THE FORMULA
Claim 2
Dependent Claim
22 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF A BASE AND ACID ADDITION SALTS THEREOF, SAID BASE BEING REPRESENTED BY THE FORMULA
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) | 1961-07-28 | 1962-01-27 | 1962-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-28 | 1966-01-27 | 1966-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-28 | 1970-01-27 | 1970-07-29 | $7700.00 | Window Closed / Lapsed |