US3255003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making cathode ray tube face plates
Assignee: American Optical Corp
•
Filing: 1961-09-18
•
Granted: 1966-06-07
•
Expires: 1981-09-18
Abstract
No abstract record available.
Inventors
- 👤 Frederick R Hays
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:32
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/86; H01J29/89; H01J29/892; H01J29/02; H01J29/10; H01J29/18; H01J29/24; H01J9/00; H01J9/20; H01J9/22; H01J9/227; H01J9/2271
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
THE METHOD OF PRODUCING A LUMINESCENT SCREEN UPON ONE SIDE OF A FIBER OPTICAL STRUCTURE FORMED OF THE CORRESPONDING ONE ENDS OF A PLURALITY OF OPTICAL FIBERS ALL BUNDLED AND SECURED TOGETHER IN SIDE-BY-SIDE RELATIONSHIP AS A UNIT, SAID FIBERS EACH HAVING A CORE OF RELATIVELY HIGH REFRACTIVE INDEX LIGHT-CONDUCTING MATERIAL SURROUNDED BY A CLADDING OF MATERIAL HAVE A REFRACTIVE INDEX OF A PREDETERMINED LOWER VALUE THAN THAT OF SAID CORE TO PROVIDE SAID FIBERS WITH A KNOWN APERTURE ANGLE WITHIN WHICH RAYS OF LIGHT DIRECTED ONTO ENDS OF SAID FIBERS WILL BE TRANSFERRED BY INTERNAL REFLECTION THROUGH SAID CORES OF SAID FIBERS SUBSTANTIALLY WITHOUT BEING TRANSFERRED THROUGH THE CLADDINGS THEREOF, SAID METHOD COMPRISING PLACING UPON SAID ONE SIDE OF SAID STRUCTURE A CONTINUOUS OVERLYING LAYER OF LUMINESCENT MATERIAL SUSPENDED IN A PHOTOSENSITIVE MATRIX MEDIUM ADAPTED TO BECOME HARDENED WHEN EX-
Claim 2
Independent Claim
141 words
THE METHOD OF PRODUCING A LUMINESCENT SCREEN UPON ONE SIDE OF A FIBER OPTICAL STRUCTURE FORMED OF THE CORRESPONDING ONE ENDS OF A PLURALITY OF OPTICAL FIBERS ALL BUNDLED AND SECURED TOGETHER IN SIDE-BY-SIDE RELATIONSHIP AS A UNIT, SAID FIBERS EACH HAVING A CORE OF RELATIVELY HIGH REFRACTIVE INDEX LIGHT-CONDUCTING MATERIAL SURROUNDED BY A CLADDING OF MATERIAL HAVE A REFRACTIVE INDEX OF A PREDETERMINED LOWER VALUE THAN THAT OF SAID CORE TO PROVIDE SAID FIBERS WITH A KNOWN APERTURE ANGLE WITHIN WHICH RAYS OF LIGHT DIRECTED ONTO ENDS OF SAID FIBERS WILL BE TRANSFERRED BY INTERNAL REFLECTION THROUGH SAID CORES OF SAID FIBERS SUBSTANTIALLY WITHOUT BEING TRANSFERRED THROUGH THE CLADDINGS THEREOF, SAID METHOD COMPRISING PLACING UPON SAID ONE SIDE OF SAID STRUCTURE A CONTINUOUS OVERLYING LAYER OF LUMINESCENT MATERIAL SUSPENDED IN A PHOTOSENSITIVE MATRIX MEDIUM ADAPTED TO BECOME HARDENED WHEN EX-
References Cited (Backward Citations)
US2310863A
Cited
US2845691A
Cited
US2955348A
Cited
US2767457A
Cited
US2985784A
Cited
US2983835A
Cited
US2958801A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-06 | 1969-12-06 | 1970-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-06 | 1973-12-06 | 1974-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-06 | 1977-12-06 | 1978-06-07 | $7700.00 | Window Closed / Lapsed |