Patent US3409529A successfully refreshed from Google Patents.
US3409529A
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US
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High current duoplasmatron having an apertured anode comprising a metal of high magnetic permeability
Assignee: Kennecott Corp
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Filing: 1967-07-07
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Granted: 1968-11-05
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Expires: 1987-07-07
Abstract
No abstract record available.
Inventors
- 👤 Kasturi L Chopra
- 👤 Randlett Myron Ronald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:45
CPC Classifications
H; H01; H01J; H01J37/00; H01J37/30; H01J37/305; H01J37/3053; C; C23; C23C; C23C14/00; C23C14/22; C23C14/34; C23C14/46; H01J27/00; H01J27/02; H01J27/08; H01J27/10; H01J37/02; H01J37/04; H01J37/08; H01J37/18; Y; Y10; Y10S; Y10S422/00; Y10S422/906
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) | 1971-11-05 | 1972-05-06 | 1972-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-05 | 1976-05-06 | 1976-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-05 | 1980-05-06 | 1980-11-05 | $7700.00 | Window Closed / Lapsed |