US2508418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nu-substituted poly-iodo phthalimides
Assignee: Eli Lilly and Co
•
Filing: 1947-12-04
•
Granted: 1950-05-23
•
Expires: 1967-12-04
Abstract
No abstract record available.
Inventors
- 👤 William H Strain
- 👤 Dec Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:35
CPC Classifications
C; C07; C07D; C07D209/00; C07D209/02; C07D209/44; C07D209/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
8 words
IODINATED PHTHALIMIDE DERIVATIVES REPRESENTED BY THE FOLLOWING FORMULA
Claim 2
Dependent Claim
8 words
IODINATED PHTHALIMIDE DERIVATIVES REPRESENTED BY THE FOLLOWING FORMULA
References Cited (Backward Citations)
US2451637A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-22 | 1953-11-21 | 1954-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-22 | 1957-11-21 | 1958-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-22 | 1961-11-21 | 1962-05-23 | $7700.00 | Window Closed / Lapsed |