Patent US2994801A successfully refreshed from Google Patents.
US2994801A
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US
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Electron beam generation
Assignee: Stauffer Chemical Co
•
Filing: 1959-06-05
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Granted: 1961-08-01
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Expires: 1979-06-05
Abstract
No abstract record available.
Inventors
- 👤 Charles W Hanks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:32
CPC Classifications
H; H01; H01J; H01J37/00; H01J37/30; H01J37/305; H01J37/02; H01J37/04; H01J37/06; H01J37/063; Y; Y10; Y10S; Y10S164/00; Y10S164/05
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2308800A
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US2321886A
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US2452044A
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US2754449A
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US2819380A
Cited
US2748312A
Cited
US2824259A
Cited
US2864965A
Cited
US2864020A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-31 | 1965-01-30 | 1965-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-31 | 1969-01-30 | 1969-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-31 | 1973-01-30 | 1973-08-01 | $7700.00 | Window Closed / Lapsed |