US3433947A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron beam accelerator with shielding means and electron beam interlocked
Assignee: High Voltage Engineering Corp
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Filing: 1966-06-02
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Granted: 1969-03-18
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Expires: 1986-06-02
Abstract
No abstract record available.
Inventors
- 👤 Roy M Emanuelson
- 👤 Robert D Cram
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:33
CPC Classifications
G; G21; G21K; G21K5/00; G21K5/10; B; B29; B29C; B29C35/00; B29C35/02; B29C35/08; B29C35/10; B29C35/0805; B29C2035/0844; B29C35/0866; B29C2035/0877
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) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |