US2741541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of uranium sulphate
Assignee: Individual
•
Filing: 1944-10-20
•
Granted: 1956-04-10
•
Expires: 1964-10-20
Abstract
No abstract record available.
Inventors
- 👤 Sanford B Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:35
CPC Classifications
C; C01; C01G; C01G43/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
26 words
THE METHOD OF DISSOLVING AN OXIDE OF URANIUM OF VALENCE LESS THAN SIX, WHICH COMPRISES TREATING THE OXIDE WITH DILUTE AQUEOUS SULFURIC ACID CONTAINING A FLUORIDE.
Claim 2
Independent Claim
26 words
THE METHOD OF DISSOLVING AN OXIDE OF URANIUM OF VALENCE LESS THAN SIX, WHICH COMPRISES TREATING THE OXIDE WITH DILUTE AQUEOUS SULFURIC ACID CONTAINING A FLUORIDE.
References Cited (Backward Citations)
US1286400A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-10 | 1959-10-10 | 1960-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-10 | 1963-10-10 | 1964-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-10 | 1967-10-10 | 1968-04-10 | $7700.00 | Window Closed / Lapsed |