US3534209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image orthicon target assembly and sealing glass composition therefor
Assignee: General Electric Co
•
Filing: 1966-09-26
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Granted: 1970-10-13
•
Expires: 1986-09-26
Abstract
No abstract record available.
Inventors
- 👤 Richard C Anderson
- 👤 Matthew J Curran
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:51
CPC Classifications
C; C03; C03C; C03C3/00; C03C3/12; C03C3/14; C03C27/00; C03C27/04; C03C27/042; C03C27/044; H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/36; H01J29/39; H01J29/41; H01J29/413
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
AN IMAGE ORTHICON TARGET COMPRISING A NICKEL-IRON ALLOY SUPPORT RING, A GLASS MEMBRANE DISPOSED OVER AND CLOSING THE RING AND HAVING A SEALING-POINT TEMPERATURE APPROXIMATING 500*C. AND A THERMAL LINEAR EXPANSION APPROXIMATING THAT OF THE SAID RING OVER A TEMPERATURE RANGE OF MORE THAN 200*C., AND A SEALING GLASS DISPOSED BETWEEN THE METAL RING AND THE GLASS MEMBRANE AND BONDING SAID RING AND MEMBRANE TOGETHER AROUND THEIR PERIPHERIES, SAID SEALING GLASS HAVING A LOWER SOFTENING-POINT TEMPERATURE THAN THE GLASS MEMBRANE AND A THERMAL LINEAR EXPANSION WITHIN LESS THAN 0.0005 INCH PER INCH PER DEGREE CENTIGRADE THAN THAT OF THE METAL RING OVER A TEMPERATURE RANGE FROM ROOM TEMPERATURE TO THE SOFTENING-POINT TEMPERATURE OF THE SEALING GLASS.
Claim 2
Dependent Claim
116 words
AN IMAGE ORTHICON TARGET COMPRISING A NICKEL-IRON ALLOY SUPPORT RING, A GLASS MEMBRANE DISPOSED OVER AND CLOSING THE RING AND HAVING A SEALING-POINT TEMPERATURE APPROXIMATING 500*C. AND A THERMAL LINEAR EXPANSION APPROXIMATING THAT OF THE SAID RING OVER A TEMPERATURE RANGE OF MORE THAN 200*C., AND A SEALING GLASS DISPOSED BETWEEN THE METAL RING AND THE GLASS MEMBRANE AND BONDING SAID RING AND MEMBRANE TOGETHER AROUND THEIR PERIPHERIES, SAID SEALING GLASS HAVING A LOWER SOFTENING-POINT TEMPERATURE THAN THE GLASS MEMBRANE AND A THERMAL LINEAR EXPANSION WITHIN LESS THAN 0.0005 INCH PER INCH PER DEGREE CENTIGRADE THAN THAT OF THE METAL RING OVER A TEMPERATURE RANGE FROM ROOM TEMPERATURE TO THE SOFTENING-POINT TEMPERATURE OF THE SEALING GLASS.
References Cited (Backward Citations)
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US2647070A
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US2663658A
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US2814165A
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GB744947A
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US3167418A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-12 | 1974-04-13 | 1974-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-12 | 1978-04-13 | 1978-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-12 | 1982-04-13 | 1982-10-13 | $7700.00 | Window Closed / Lapsed |