US3451940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the fixation of high level radioactive wastes
Assignee: NL Industries Inc
•
Filing: 1967-03-22
•
Granted: 1969-06-24
•
Expires: 1987-03-22
Abstract
No abstract record available.
Inventors
- 👤 George L Stukenbroeker
- 👤 Ernest Suriani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:40
CPC Classifications
G; G21; G21F; G21F9/00; G21F9/28; G21F9/30; G21F9/301; G21F9/302; G21F9/04; G21F9/06; G21F9/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
BE630260A
Cited
US3110557A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-23 | 1972-12-23 | 1973-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-23 | 1976-12-23 | 1977-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-23 | 1980-12-23 | 1981-06-24 | $7700.00 | Window Closed / Lapsed |