US2758006A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Isotope enrichment process
Assignee: Individual
•
Filing: 1944-04-21
•
Granted: 1956-08-07
•
Expires: 1964-04-21
Abstract
No abstract record available.
Inventors
- 👤 James M Carter
- 👤 Martin D Kamen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:30
CPC Classifications
B; B01; B01D; B01D59/00; B01D59/44; C; C22; C22B; C22B60/00; C22B60/02; C22B60/0204; C22B60/0217; C22B60/0252; C22B60/0278
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
59 words
IN A PROCESS FOR INCREASING THE ISOTOPIC YIELD FROM MASS SPECTROGRAPH SEPARATORS THE STEPS COMPRISING REMOVING A FIRST SEPARATED PORTION OF AN ELEMENTAL ISOTOPE FROM THE COLLECTOR OF SAID SEPARATORS, PURIFYING BY CHEMICAL MEANS SAID REMOVED ISOTOPE, CHEMICALLY REACTING SAID PURIFIED ISOTOPE TO FORM A VOLATILE COMPOUND OF THE SAME, AND AGAIN SPECTROGRAPHICALLY SEPARATING SAID MATERIAL INTO ITS ISOTOPES.
References Cited (Backward Citations)
US2341551A
Cited
US2331189A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-07 | 1960-02-06 | 1960-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-07 | 1964-02-06 | 1964-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-07 | 1968-02-06 | 1968-08-07 | $7700.00 | Window Closed / Lapsed |