US2445301A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Influenza vaccine
Assignee: University of Pennsylvania
•
Filing: 1941-12-05
•
Granted: 1948-07-13
•
Expires: 1961-12-05
Abstract
No abstract record available.
Inventors
- 👤 Leslie A Chambers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:05
CPC Classifications
A; A61; A61K; A61K39/00; A61K39/12; A61K39/145; A61K2039/51; A61K2039/525; A61K2039/5252; A61K2039/555; A61K2039/55511; C; C12; C12N; C12N2760/00; C12N2760/00011; C12N2760/16011; C12N2760/16111; C12N2760/16134; C12N2760/16211; C12N2760/16234
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-07-13 | 1952-01-12 | 1952-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-07-13 | 1956-01-12 | 1956-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-07-13 | 1960-01-12 | 1960-07-13 | $7700.00 | Window Closed / Lapsed |