US2537067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of thorium
Assignee: Westinghouse Electric Corp
•
Filing: 1946-04-24
•
Granted: 1951-01-09
•
Expires: 1966-04-24
Abstract
No abstract record available.
Inventors
- 👤 William C Lilliendahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:29
CPC Classifications
C; C22; C22B; C22B60/00; C22B60/02; C22B60/0291
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1573083A
Cited
US1646734A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-08 | 1954-07-10 | 1955-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-08 | 1958-07-10 | 1959-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-08 | 1962-07-10 | 1963-01-09 | $7700.00 | Window Closed / Lapsed |