US2964124A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation of gases by diffusion
Assignee: Individual
•
Filing: 1943-12-17
•
Granted: 1960-12-13
•
Expires: 1963-12-17
Abstract
No abstract record available.
Inventors
- 👤 Peicrls Rudolf Ernst
- 👤 Simon Franz Eugen
- 👤 Arms Henry Shull
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:08
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/22; B01D63/00; B01D63/08; B01D63/087; B01D2313/00; B01D2313/18; B01D2319/00; B01D2319/02; B01D2319/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |