US2680815A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for treating substances with high energy electrons
Assignee: High Voltage Engineering Corp
•
Filing: 1950-12-28
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Granted: 1954-06-08
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Expires: 1970-12-28
Abstract
No abstract record available.
Inventors
- 👤 Ernest A Burrill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:08
CPC Classifications
H; H01; H01J; H01J33/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2511853A
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US1870975A
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US1877382A
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US2004453A
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US2241432A
Cited
US2429217A
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US2333842A
Cited
US2517260A
Cited
US2456909A
Cited
US2602751A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-06-07 | 1957-12-07 | 1958-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-07 | 1961-12-07 | 1962-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-07 | 1965-12-07 | 1966-06-08 | $7700.00 | Window Closed / Lapsed |