US3380853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intensified radioactive sources and method of preparation
Assignee: United States Department of the Air Force
•
Filing: 1964-07-01
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Granted: 1968-04-30
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Expires: 1984-07-01
Abstract
No abstract record available.
Inventors
- 👤 Angelis Henry M De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:45
CPC Classifications
G; G21; G21G; G21G4/00; G21G4/04; Y; Y10; Y10S; Y10S376/00; Y10S376/916; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24851; Y10T428/31504; Y10T428/31678
Claims Analysis
Total Claims: 0
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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) | 1971-04-30 | 1971-10-30 | 1972-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-30 | 1975-10-30 | 1976-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-30 | 1979-10-30 | 1980-04-30 | $7700.00 | Window Closed / Lapsed |