US2723181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Processes of producing uranium trioxide
Assignee: Individual
•
Filing: 1955-05-26
•
Granted: 1955-11-08
•
Expires: 1975-05-26
Abstract
No abstract record available.
Inventors
- 👤 Clarence E Larson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:23
CPC Classifications
C; C01; C01G; C01G43/00; C01G43/01
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
22 words
THE PROCESS WHICH COMPRISES WASHING URANIUM TETRAOXIDE WITH AMMONIUM HYDROXIDE, SEPARATING THE URANIUM TETRAOXIDE AND HEATING TO CONVERT IT TO URANIUM TRIOXIDE,
Claim 2
Dependent Claim
22 words
THE PROCESS WHICH COMPRISES WASHING URANIUM TETRAOXIDE WITH AMMONIUM HYDROXIDE, SEPARATING THE URANIUM TETRAOXIDE AND HEATING TO CONVERT IT TO URANIUM TRIOXIDE,
Claim 3
Dependent Claim
9 words
THE PROCESS COMPRISING WASHING URANIUM TETRAOXIDE WITH AMMONIUM HYDROXIDE.
Claim 4
Dependent Claim
9 words
THE PROCESS COMPRISING WASHING URANIUM TETRAOXIDE WITH AMMONIUM HYDROXIDE.
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) | 1958-11-07 | 1959-05-09 | 1959-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-07 | 1963-05-09 | 1963-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-07 | 1967-05-09 | 1967-11-08 | $7700.00 | Window Closed / Lapsed |