Patent US5946771A successfully refreshed from Google Patents.
Patent US3277637A successfully refreshed from Google Patents.
US3277637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the separation of gaseous isotopes
Assignee: Individual
•
Filing: 1961-06-22
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Granted: 1966-10-11
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Expires: 1981-06-22
Abstract
No abstract record available.
Inventors
- 👤 Dobner Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:27
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/24; B01D59/00; B01D59/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
AN APPARATUS FOR SEPARATING GASEOUS ISOTOPES COMPRISING A CHAMBER HAVING SPACED PARALLEL END WALLS AND A CONCAVE WALL DEFINED BY A SEGMENT OF A CYLINDER BETWEEN AND JOINING THE END WALLS, A CYLINDER ROTATABLY MOUNTED IN SAID CHAMBER WITH THE ENDS THEREOF IN SEALING ENGAGEMENT WITH THE PARALLEL END WALLS AND THE SURFACE THEREOF IN SEALING ENGAGEMENT WITH THE CONCAVE WALL, PORTS IN EACH OF THE PARALLEL END WALLS, ADJACENT THE JUNCTION THEREOF WITH THE CONCAVE WALL, AT LEAST ONE LINEAR GROOVE IN THE SURFACE OF THE CYLINDER PARALLEL WITH THE AXIS OF THE CYLINDER AND COEXTENSICE WITH THE LENGTH OF THE CYLINDERM, AND MEANS FOR ROTATING THE CYLINDER, MEANS CONNECTING ONE PORT TO A SOURCE OF COMPRESSED GAS, MEANS CONNECTING
Claim 2
Independent Claim
121 words
AN APPARATUS FOR SEPARATING GASEOUS ISOTOPES COMPRISING A CHAMBER HAVING SPACED PARALLEL END WALLS AND A CONCAVE WALL DEFINED BY A SEGMENT OF A CYLINDER BETWEEN AND JOINING THE END WALLS, A CYLINDER ROTATABLY MOUNTED IN SAID CHAMBER WITH THE ENDS THEREOF IN SEALING ENGAGEMENT WITH THE PARALLEL END WALLS AND THE SURFACE THEREOF IN SEALING ENGAGEMENT WITH THE CONCAVE WALL, PORTS IN EACH OF THE PARALLEL END WALLS, ADJACENT THE JUNCTION THEREOF WITH THE CONCAVE WALL, AT LEAST ONE LINEAR GROOVE IN THE SURFACE OF THE CYLINDER PARALLEL WITH THE AXIS OF THE CYLINDER AND COEXTENSICE WITH THE LENGTH OF THE CYLINDERM, AND MEANS FOR ROTATING THE CYLINDER, MEANS CONNECTING ONE PORT TO A SOURCE OF COMPRESSED GAS, MEANS CONNECTING
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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) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |