US2714679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High voltage apparatus for generating a substantially well-collimated beam of charged particles
Assignee: High Voltage Engineering Corp
•
Filing: 1952-07-03
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Granted: 1955-08-02
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Expires: 1972-07-03
Abstract
No abstract record available.
Inventors
- 👤 Graaff Robert J Van De
- 👤 William W Buechner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:36
CPC Classifications
H; H01; H01J; H01J5/00; H01J5/02; H01J5/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2005021A
Cited
US2095930A
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US2206558A
Cited
US2145727A
Cited
US2215155A
Cited
US2358553A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-08-01 | 1959-01-31 | 1959-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-01 | 1963-01-31 | 1963-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-01 | 1967-01-31 | 1967-08-02 | $7700.00 | Window Closed / Lapsed |