US3200188A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cathode ray tubes with insulated implosion protective frame
Assignee: Telefunken Patentverwertungs GmbH
•
Filing: 1963-03-15
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Granted: 1965-08-10
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Expires: 1983-03-15
Abstract
No abstract record available.
Inventors
- 👤 Lange Herbert
- 👤 Ritter Johannes
- 👤 Schaffernicht Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:55
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/86; H01J29/87; H01J2229/00; H01J2229/87; H01J2229/875
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
AN IMPLOSION PROTECTIVE DEVICE FOR A CATHODE RAY TUBES HAVING A SCREEN PORTION AND A CONE PORTION JOINING SAID SCREEN PORTION, THE JUNCTURE OF WHICH PORTIONS CONSTITUTES THE REGION OF MAXIMUM CIRCUMFERENCE OF THE TUBE, SAID IMPLOSION PROTECTIVE DEVICE COMPRISING A RIGID METALLIC FRAME ENCOMPASSING THE TUBE IN THE REGION OF SAID JUNCTURE, A PORTION OF SAID FRAME BEING LOCATED IN THE VICINITY OF SAID SCREEN PORTION OF THE TUBE, THERE BEING A FILLER MASS INTERPOSED BETWEEN THE INNER SURFACE OF SAID RIGID METALLIC FRAME AND THE OUTER SURFACE OF THE TUBE, AND INSULATION OVERLYING THE EXPOSED SIDE OF SAID SCREENSIDE FRAME PORTION THEREBY TO PREVENT PERSONS TOUCHING SAID SCREEN-SIDE FRAME PORTION FROM BEING SUBJECTED TO A HIGH ELECTRICAL POTENTIAL OF A CHASSIS TO WHICH THE TUBE IS CONNECTED BY MEANS OF SAID FRAME.
Claim 2
Dependent Claim
134 words
AN IMPLOSION PROTECTIVE DEVICE FOR A CATHODE RAY TUBES HAVING A SCREEN PORTION AND A CONE PORTION JOINING SAID SCREEN PORTION, THE JUNCTURE OF WHICH PORTIONS CONSTITUTES THE REGION OF MAXIMUM CIRCUMFERENCE OF THE TUBE, SAID IMPLOSION PROTECTIVE DEVICE COMPRISING A RIGID METALLIC FRAME ENCOMPASSING THE TUBE IN THE REGION OF SAID JUNCTURE, A PORTION OF SAID FRAME BEING LOCATED IN THE VICINITY OF SAID SCREEN PORTION OF THE TUBE, THERE BEING A FILLER MASS INTERPOSED BETWEEN THE INNER SURFACE OF SAID RIGID METALLIC FRAME AND THE OUTER SURFACE OF THE TUBE, AND INSULATION OVERLYING THE EXPOSED SIDE OF SAID SCREENSIDE FRAME PORTION THEREBY TO PREVENT PERSONS TOUCHING SAID SCREEN-SIDE FRAME PORTION FROM BEING SUBJECTED TO A HIGH ELECTRICAL POTENTIAL OF A CHASSIS TO WHICH THE TUBE IS CONNECTED BY MEANS OF SAID FRAME.
References Cited (Backward Citations)
US2734142A
Cited
US2436847A
Cited
US2293529A
Cited
US2644854A
Cited
US2503813A
Cited
US2602114A
Cited
US2738500A
Cited
US3009017A
Cited
US2918670A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |