US3290531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic switching tube
Assignee: GTE Sylvania Inc
•
Filing: 1963-07-01
•
Granted: 1966-12-06
•
Expires: 1983-07-01
Abstract
No abstract record available.
Inventors
- 👤 Thaddeus V Rychlewski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:29
CPC Classifications
G; G09; G09G; G09G3/00; G09G3/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
112 words
AN ELECTRONIC SWITCHING TUBE COMPRISING A SOURCE OF ELECTRON EMISSION, A TARGET ASSEMBLY TOWARD WHICH THE ELECTRONS ARE DIRECTED AND A GATING STRUCTURE THEREBETWEEN, SAID GATING STRUCTURE COMPRISING AN ELECTRICALLY INSULATING SUPPORT HAVING PARALLEL ROWS OF APERTURES THERETHROUGH, A NUMBER OF APERTURED CONDUCTIVE MEANS OVERLYING SAID APERTURES IN SAID SUPPORT FOR CONTROLLING THE FLOW OF ELECTRONS THERETHROUGH, SAID APERTURES IN SAID CONDUCTIVE MEANS BEING ALIGNED WITH SAID APERTURES IN SAID SUPPORT, AND SAID TARGET ASSEMBLY COMPRISING CONDUCTORS TRAVERSING ALL OF THE CONDUCTIVE MEANS OF SAID GATING STRUCTURE, AND INDIVIDUAL CONNECTIONS LEADING TO EACH OF THE CONDUCTIVE MEANS AND CONNECTIONS TO THE SOURCE OF ELECTRON EMISSION AND THE CONDUCTORS OF THE TARGET ASSEMBLY.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |