US2931903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acceleration and application of high intensity electron beams for radiation processing
Assignee: High Voltage Engineering Corp
•
Filing: 1957-06-17
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Granted: 1960-04-05
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Expires: 1977-06-17
Abstract
No abstract record available.
Inventors
- 👤 Graaff Robert J Van De
- 👤 John G Trump
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:14
CPC Classifications
G; G21; G21K; G21K1/00; G21K1/08; G21K1/093
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2702863A
Cited
US2796545A
Cited
US2777958A
Cited
US2724059A
Cited
US2741704A
Cited
US2824969A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-05 | 1963-10-05 | 1964-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-05 | 1967-10-05 | 1968-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-05 | 1971-10-05 | 1972-04-05 | $7700.00 | Window Closed / Lapsed |