US3175131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnet construction for a variable energy cyclotron
Assignee: Individual
•
Filing: 1961-02-08
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Granted: 1965-03-23
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Expires: 1981-02-08
Abstract
No abstract record available.
Inventors
- 👤 Richard J Burleigh
- 👤 Elmer L Kelly
- 👤 Joseph H Dorst
- 👤 Charles G Dols
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:02
CPC Classifications
H; H05; H05H; H05H13/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
IN A MAGNET FOR A VARIABLE ENERGY CYCLOTRON, THE COMBINATION COMPRISING A PAIR OF COAXIAL CYLINDRICAL POLE PIECES SPACED APART TO FORM A MAGNETIC FIELD GAP, EACH OF SAID POLE PIECES HAVING CLOSED INTERNAL VOID SPACES THEREIN A PROXIMITY TO SAID GAP, SAID POLE PIECES BEING FORMED OF A PLURALITY OF JUXTAPOSED MEMBERS HAVING AD-
Claim 2
Dependent Claim
55 words
IN A MAGNET FOR A VARIABLE ENERGY CYCLOTRON, THE COMBINATION COMPRISING A PAIR OF COAXIAL CYLINDRICAL POLE PIECES SPACED APART TO FORM A MAGNETIC FIELD GAP, EACH OF SAID POLE PIECES HAVING CLOSED INTERNAL VOID SPACES THEREIN A PROXIMITY TO SAID GAP, SAID POLE PIECES BEING FORMED OF A PLURALITY OF JUXTAPOSED MEMBERS HAVING AD-
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) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |