US3400207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for regulating power applied to an electron gun employed in an electron beam furnace
Assignee: Temescal Metallurgical Corp
•
Filing: 1964-09-28
•
Granted: 1968-09-03
•
Expires: 1984-09-28
Abstract
No abstract record available.
Inventors
- 👤 Emmett R Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:33
CPC Classifications
B; B05; B05B; B05B7/00; B05B7/14; B05B7/1404; B05B13/00; B05B13/02; H; H01; H01J; H01J37/00; H01J37/02; H01J37/24; H01J37/241
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1971-09-03 | 1972-03-04 | 1972-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-03 | 1976-03-04 | 1976-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-03 | 1980-03-04 | 1980-09-03 | $7700.00 | Window Closed / Lapsed |