US2699516A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron discharge device having diskshaped electrode supports
Assignee: Hartford National Bank and Trust Co
•
Filing: 1950-03-07
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Granted: 1955-01-11
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Expires: 1970-03-07
Abstract
No abstract record available.
Inventors
- 👤 Diemer Gesinus
- 👤 Lemmens Hendricus Johannes
- 👤 Bongers Wilhelmus Johannes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:26
CPC Classifications
H; H01; H01J; H01J21/00; H01J21/36; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49895; Y10T29/49899; Y10T29/49902; Y10T29/49904; Y10T29/53; Y10T29/53652; Y10T29/53987
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2465370A
Cited
US2455868A
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US2455851A
Cited
US2459487A
Cited
US2462921A
Cited
US2455381A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-10 | 1958-07-12 | 1959-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-10 | 1962-07-12 | 1963-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-10 | 1966-07-12 | 1967-01-11 | $7700.00 | Window Closed / Lapsed |