US2924738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron beam apparatus
Assignee: Varian Medical Systems Inc
•
Filing: 1954-01-14
•
Granted: 1960-02-09
•
Expires: 1974-01-14
Abstract
No abstract record available.
Inventors
- 👤 Chodorow Marvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:29
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/02; H01J23/08; H01J23/083
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2289756A
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US2653270A
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US2489082A
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US2645738A
Cited
US2679615A
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US2545595A
Cited
FR1006336A
Cited
US2842704A
Cited
FR1034007A
Cited
US2800606A
Cited
US2845571A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-08 | 1963-08-10 | 1964-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-08 | 1967-08-10 | 1968-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-08 | 1971-08-10 | 1972-02-09 | $7700.00 | Window Closed / Lapsed |