US3194739A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fusion research apparatus
Assignee: General Dynamics Corp
•
Filing: 1962-08-20
•
Granted: 1965-07-13
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Expires: 1982-08-20
Abstract
No abstract record available.
Inventors
- 👤 Donald W Kerst
- 👤 Ohkawa Tihiro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:49
CPC Classifications
H; H05; H05H; H05H1/00; H05H1/02; H05H1/10; H05H1/12; Y; Y02; Y02E; Y02E30/00; Y02E30/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
APPARATUS FOR CONFINING PLASMA COMPRISING MEANS FOR PROVIDING ALTERNATE INERCONNECTED CONVEX AND CONCAVE MAGNETIC CONFINING FIELDS ABOUT AN AREA WHERE THE PLASMA IS TO BE CONFINED, AND ADDITIONAL MEANS IN EACH OF THE CONCAVE FIELDS FOR PROVIDING AND ADDITIONAL CONVEX MAGNETIC FIELD BETWEEN EACH PAIR OF THE FIRST MENTIONED CONVEX FIELDS WHEREBY THE PLASMA AREA IS ENCIRCLED BY A SERIES OF CONVEX FIELDS, THE TOTAL MAGNETIC FIELD STRENGTH IN THE SPACE DEFINED BETWEEN THE ADDITIONAL MEANS AND
Claim 2
Dependent Claim
77 words
APPARATUS FOR CONFINING PLASMA COMPRISING MEANS FOR PROVIDING ALTERNATE INERCONNECTED CONVEX AND CONCAVE MAGNETIC CONFINING FIELDS ABOUT AN AREA WHERE THE PLASMA IS TO BE CONFINED, AND ADDITIONAL MEANS IN EACH OF THE CONCAVE FIELDS FOR PROVIDING AND ADDITIONAL CONVEX MAGNETIC FIELD BETWEEN EACH PAIR OF THE FIRST MENTIONED CONVEX FIELDS WHEREBY THE PLASMA AREA IS ENCIRCLED BY A SERIES OF CONVEX FIELDS, THE TOTAL MAGNETIC FIELD STRENGTH IN THE SPACE DEFINED BETWEEN THE ADDITIONAL MEANS AND
References Cited (Backward Citations)
GB859459A
Cited
US3012955A
Cited
US2961559A
Cited
US3009080A
Cited
US3038099A
Cited
US3085173A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |