US3468808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of high purity radioactive technetium-99m
Assignee: CINTICHEM Inc
•
Filing: 1967-06-16
•
Granted: 1969-09-23
•
Expires: 1987-06-16
Abstract
No abstract record available.
Inventors
- 👤 Hirofumi Arino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:57
CPC Classifications
C; C22; C22B; C22B61/00; G; G21; G21G; G21G1/00; G21G1/0005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB896758A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-22 | 1973-03-24 | 1973-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-22 | 1977-03-24 | 1977-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-22 | 1981-03-24 | 1981-09-23 | $7700.00 | Window Closed / Lapsed |