Patent US2709222A successfully refreshed from Google Patents.
US2709222A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of and apparatus for separating materials
Assignee: Individual
•
Filing: 1944-10-09
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Granted: 1955-05-24
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Expires: 1964-10-09
Abstract
No abstract record available.
Inventors
- 👤 Ernest O Lawrence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:08
CPC Classifications
B; B01; B01D; B01D59/00; B01D59/44; B01D59/48
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
60 words
A CALUTRON COMPRISING MEANS FOR ESTABLISHING A MAGNETIC FIELD HAVING A PREDETERMINED FLUX DIRECTION, A VACUUM ENVELOPE WITHIN SAID FIELD AND INCLUDING A MOUNTING, AN ACCELERATOR MECHANISM WITHIN SAID ENVELOPE MOVABLY SUPPORTED ON SAID MOUNTING, SAID MECHANISM HAVING A LINEAR EFFECTIVE EDGE, AND EXTERNAL MEANS FOR MOVING SAID MECHANISM TO ROTATE SAID EDGE ANGULARLY WITH RESPECT TO SAID FLUX DIRECTION.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-05-23 | 1958-11-22 | 1959-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-23 | 1962-11-22 | 1963-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-23 | 1966-11-22 | 1967-05-24 | $7700.00 | Window Closed / Lapsed |