Patent US3066236A successfully refreshed from Google Patents.
US3066236A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron discharge devices
Assignee: International Standard Electric Corp
•
Filing: 1959-05-01
•
Granted: 1962-11-27
•
Expires: 1979-05-01
Abstract
No abstract record available.
Inventors
- 👤 Sandbank Carl Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:03
CPC Classifications
H; H01; H01J; H01J21/00; H01J21/02; H01B; H01B1/00; H01J19/00; H01J19/42; H01J2893/00; H01J2893/0001; H01J2893/0002
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) | 1965-11-26 | 1966-05-28 | 1966-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-26 | 1970-05-28 | 1970-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-26 | 1974-05-28 | 1974-11-27 | $7700.00 | Window Closed / Lapsed |