US2546933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of dissolving thorium values
Assignee: Individual
•
Filing: 1946-05-24
•
Granted: 1951-03-27
•
Expires: 1966-05-24
Abstract
No abstract record available.
Inventors
- 👤 Frank L Steahly
- 👤 Raymond W Stoughton
- 👤 Frederic W Schuler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:48
CPC Classifications
C; C01; C01F; C01F15/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
A METHOD OF DISSOLVING THORIUM VALUES WHICH COMPRISES HEATING SAID THORIUM VALUES IN A SOLVENT CONTAINING NITRIC ACID AND A SMALL AMOUNT OF A FLUORINE CONTAINING COMPOUND.
Claim 2
Independent Claim
27 words
A METHOD OF DISSOLVING THORIUM VALUES WHICH COMPRISES HEATING SAID THORIUM VALUES IN A SOLVENT CONTAINING NITRIC ACID AND A SMALL AMOUNT OF A FLUORINE CONTAINING COMPOUND.
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) | 1954-03-26 | 1954-09-25 | 1955-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-26 | 1958-09-25 | 1959-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-26 | 1962-09-25 | 1963-03-27 | $7700.00 | Window Closed / Lapsed |