US3193907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High speed cathode-ray direct writing tube
Assignee: Northrop Grumman Guidance and Electronics Co Inc
•
Filing: 1960-03-22
•
Granted: 1965-07-13
•
Expires: 1980-03-22
Abstract
No abstract record available.
Inventors
- 👤 Norman F Fyler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:09
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/02; H01J31/06; H01J31/065
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
IN THE METHOD OF TREATING A MOSAIC VITREOUS TARGET STRUCTURE HAVING A PLURALITY OF FINE WIRES IMBEDDED THEREIN RUNNING FROM A FIRST SIDE OF THE STRUCTURE TO A SECOND OPPOSITE SIDE, THE COMBINATION OF STEPS COMPRISING: HEATING THE VITREOUS STRUCTURE TO MAKE IT FLEXIBLE; BENDING THE STRUCTURE TO MAKE THE FIRST SIDE CONVEX AND THE SECOND SIDE CONCAVE; AND CUTTING THE FIRST SIDE TO PROVIDE A PLANAR SURFACE.
Claim 2
Dependent Claim
68 words
IN THE METHOD OF TREATING A MOSAIC VITREOUS TARGET STRUCTURE HAVING A PLURALITY OF FINE WIRES IMBEDDED THEREIN RUNNING FROM A FIRST SIDE OF THE STRUCTURE TO A SECOND OPPOSITE SIDE, THE COMBINATION OF STEPS COMPRISING: HEATING THE VITREOUS STRUCTURE TO MAKE IT FLEXIBLE; BENDING THE STRUCTURE TO MAKE THE FIRST SIDE CONVEX AND THE SECOND SIDE CONCAVE; AND CUTTING THE FIRST SIDE TO PROVIDE A PLANAR SURFACE.
References Cited (Backward Citations)
US220907A
Cited
US222768A
Cited
US2015570A
Cited
US2160510A
Cited
US2197753A
Cited
US2289205A
Cited
US2291476A
Cited
US2446672A
Cited
US2619438A
Cited
FR927092A
Cited
US2552291A
Cited
US2598317A
Cited
US2952796A
Cited
US2978607A
Cited
US2944322A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |