US2832793A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for separation of heavy metals
Assignee: Individual
•
Filing: 1944-11-30
•
Granted: 1958-04-29
•
Expires: 1964-11-30
Abstract
No abstract record available.
Inventors
- 👤 Robert B Duffield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:28
CPC Classifications
C; C01; C01G; C01G56/00; C01G56/001; C01G56/002; C07; C07C; C07C51/00; C07C51/41; C07C51/412
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
IN A PROCESS FOR THE SEPARATION OF PLUTONIUM FROM FISSION PRODUCTS, THE STEP WHICH COMPRISES CONTACTING A SOLUTION CONTAINING FISSION PRODUCTS AND PLUTONIUM IN ITS HIGHER STATE OF OXIDATION WITH AN ALKALI METAL POSITIVE DIVALENT METAL URANYL ACETATE IN WHICH THE POSITIVE DIVALENT METAL IS A MEMBER OF THE GROUP CONSISTING OF MG, NI, CO, ZN, MN, CU AND CD.
Claim 2
Dependent Claim
60 words
IN A PROCESS FOR THE SEPARATION OF PLUTONIUM FROM FISSION PRODUCTS, THE STEP WHICH COMPRISES CONTACTING A SOLUTION CONTAINING FISSION PRODUCTS AND PLUTONIUM IN ITS HIGHER STATE OF OXIDATION WITH AN ALKALI METAL POSITIVE DIVALENT METAL URANYL ACETATE IN WHICH THE POSITIVE DIVALENT METAL IS A MEMBER OF THE GROUP CONSISTING OF MG, NI, CO, ZN, MN, CU AND CD.
References Cited (Backward Citations)
US2206634A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-28 | 1961-10-28 | 1962-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-28 | 1965-10-28 | 1966-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-28 | 1969-10-28 | 1970-04-29 | $7700.00 | Window Closed / Lapsed |