US3309557A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron gun utilizing a strip transmission line to extract electrons from a cathode
Assignee: Associated Electrical Industries Ltd
•
Filing: 1963-07-08
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Granted: 1967-03-14
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Expires: 1983-07-08
Abstract
No abstract record available.
Inventors
- 👤 Crowley-Milling Michae Crowley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:18
CPC Classifications
H; H01; H01J; H01J3/00; H01J3/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
AN ELECTRON GUN COMPRISING A CATHODE AND AN ANODE, A STRIP TRANSMISSION LINE EXTENDING TRANSVERSELY ACROSS THE ELECTRON PATH BETWEEN THE CATHODE AND ANODE, SAID STRIP TRANSMISSION LINE INCLUDING AN INNER CONDUCTOR AND AN
Claim 2
Dependent Claim
34 words
AN ELECTRON GUN COMPRISING A CATHODE AND AN ANODE, A STRIP TRANSMISSION LINE EXTENDING TRANSVERSELY ACROSS THE ELECTRON PATH BETWEEN THE CATHODE AND ANODE, SAID STRIP TRANSMISSION LINE INCLUDING AN INNER CONDUCTOR AND AN
References Cited (Backward Citations)
US3237047A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |