US3373302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cathode ray tube display screen comprising woven mat of luminescent glass fibers
Assignee: OI Glass Inc
•
Filing: 1964-12-21
•
Granted: 1968-03-12
•
Expires: 1984-12-21
Abstract
No abstract record available.
Inventors
- 👤 Stephen W Barber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:07
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/18; H01J29/24; H01J29/86; H01J29/89; H01J29/892
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A CATHODE RAY TUBE INCLUDING AN ELECTRON GUN AND A DISPLAY SCREEN EXCITABLE INTO LUMINESCENT EMISSION BY ELECTRONS FROM SAID GUN, SAID DISPLAY SCREEN COMPRISING A WOVEN MAT OF SUBSTANTIALLY TRANSPARENT, UNIFORMLY COALESCED, HOMOGENEOUS, FUSED GLASS FIBERS PREPARED FROM A COMPOSITION CONSISTING ESSENTIALLY OF FINELY DIVIDED, ANHYDROUS, PARTICULATE, NON-CRYSTALLINE, SUBSTANTIALLY PURE SILICA AND A LUMINESCENT PRODUCING QUANTITY OF AT LEAST ONE MEMBER SELECTED FROM LANTHANUM, CERIUM, PRASEODYMIUM, NEODYMIUM, SAMARIUM, EUROPIUM, GADOLINIUM, TERBIUM, DYSPROSIUM, HOLMIUM, ERBIUM, THULIUM, YTTERBIUM, AND LUTETIUM.
Claim 2
Dependent Claim
79 words
A CATHODE RAY TUBE INCLUDING AN ELECTRON GUN AND A DISPLAY SCREEN EXCITABLE INTO LUMINESCENT EMISSION BY ELECTRONS FROM SAID GUN, SAID DISPLAY SCREEN COMPRISING A WOVEN MAT OF SUBSTANTIALLY TRANSPARENT, UNIFORMLY COALESCED, HOMOGENEOUS, FUSED GLASS FIBERS PREPARED FROM A COMPOSITION CONSISTING ESSENTIALLY OF FINELY DIVIDED, ANHYDROUS, PARTICULATE, NON-CRYSTALLINE, SUBSTANTIALLY PURE SILICA AND A LUMINESCENT PRODUCING QUANTITY OF AT LEAST ONE MEMBER SELECTED FROM LANTHANUM, CERIUM, PRASEODYMIUM, NEODYMIUM, SAMARIUM, EUROPIUM, GADOLINIUM, TERBIUM, DYSPROSIUM, HOLMIUM, ERBIUM, THULIUM, YTTERBIUM, AND LUTETIUM.
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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) | 1971-03-12 | 1971-09-11 | 1972-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-12 | 1975-09-11 | 1976-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-12 | 1979-09-11 | 1980-03-12 | $7700.00 | Window Closed / Lapsed |