US2787587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Isotope exchange process
Assignee: Individual
•
Filing: 1949-07-26
•
Granted: 1957-04-02
•
Expires: 1969-07-26
Abstract
No abstract record available.
Inventors
- 👤 Richard W Woodard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:50
CPC Classifications
B; B01; B01D; B01D59/00; B01D59/28; B01D59/30
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
49 words
A PROCESS FOR EFFECTING ISOTOPE EXCHANGE BETWEEN URANYL IONS AND URANOUS IONS WHICH COMPRISES DIGESTING AN AQUEOUS ACIDIC SOLUTION OF URANYL IONS AND MONOMERIC HYDROLYZED URANOUS IONS AT A TEMPERATURE OF 25-75*C. AND IN THE PRESENCE OF LIGHT AND THEREAFTER SEPARATING THE URANYL AND URANOUS COMPONENTS OF SAID SOLUTION.
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) | 1960-04-01 | 1960-10-01 | 1961-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-01 | 1964-10-01 | 1965-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-01 | 1968-10-01 | 1969-04-02 | $7700.00 | Window Closed / Lapsed |