Patent US3248480A successfully refreshed from Google Patents.
US3248480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cathode ray tubes
Assignee: International Standard Electric Corp
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Filing: 1963-03-27
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Granted: 1966-04-26
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Expires: 1983-03-27
Abstract
No abstract record available.
Inventors
- 👤 Browning Roy Victor
- 👤 Woodgate Denis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:14
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/86; H01J29/87
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A CATHODE RAY TUBE PROTECTION DEVICE COMPRISING A TUBE HAVING A RECTANGULARLY SHAPED GLASS FACEPLATE, A METAL STRESS BAND SURROUDING THE ENTIRE PERIPHERY OF SAID FACEPLATE, PRESSURE APPLYING BRACKETS MOUNTED ON SAID STRESS BAND AT THE FOUR CORNERS OF SAID FACEPLATE AND MEANS ATTACHED TO SAID BAND FOR ADJUSTING THE TENSION OF SAID BAND TO APPLY THE PRESSURE OF SAID BRACKETS AGAINST THE GLASS AT SAID CORNERS WITH A PREDETERMINED FORCE SUFFICIENT TO INHIBIT IMPLOSION OF THE TUBE.
Claim 2
Dependent Claim
78 words
A CATHODE RAY TUBE PROTECTION DEVICE COMPRISING A TUBE HAVING A RECTANGULARLY SHAPED GLASS FACEPLATE, A METAL STRESS BAND SURROUDING THE ENTIRE PERIPHERY OF SAID FACEPLATE, PRESSURE APPLYING BRACKETS MOUNTED ON SAID STRESS BAND AT THE FOUR CORNERS OF SAID FACEPLATE AND MEANS ATTACHED TO SAID BAND FOR ADJUSTING THE TENSION OF SAID BAND TO APPLY THE PRESSURE OF SAID BRACKETS AGAINST THE GLASS AT SAID CORNERS WITH A PREDETERMINED FORCE SUFFICIENT TO INHIBIT IMPLOSION OF THE TUBE.
References Cited (Backward Citations)
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Cited
US2654880A
Cited
US2785820A
Cited
US2970311A
Cited
US2874017A
Cited
GB809876A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |