Patent US3291706A successfully refreshed from Google Patents.
US3291706A
Expired / Lapsed
US
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Method of making an optical fiber phosphor screen
Assignee: Individual
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Filing: 1963-10-08
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Granted: 1966-12-13
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Expires: 1983-10-08
Abstract
No abstract record available.
Inventors
- 👤 Radames K H Gebel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:37
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/18; H01J9/00; H01J9/20; H01J9/22; H01J9/227; H01J9/2271
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
THE METHOD OF MAKING AN OPTICAL FIBER PHOSPHOR SCREEN COMPRISING THE STEP OF: APPLYING TO ONE SIDE OF AN OPTICAL FIBER PLATE IN WHICH THE FIBERS HAVE OPAQUE COATINGS, A COATING OF A PHOTOSENSITIVE RESIST MATERIAL OF THICKNESS EQUAL TO THE DESIRED PHOSPHOR DEPTH; EXPOSING SAID PHOTOSENSITIVE RESIST MATERIAL TO LIGHT PASSED THROUGH THE OPTICAL FIBERS FROM THE OTHER SIDE OF SAID PLATE; DEVELOPING THE RESIST IMAGE BY REMOVING THE UNEXPOSED RESIST MATERIAL; VACUUM DEPOSITING FROM THE VAPOR STATE A LAYER OF METAL OVER THE AREA CONTAINING THE RESIST IMAGE TO A DEPTH EQUAL TO THE THICKNESS OF THE RESIST MATERIAL; REMOVING THE RESIST MATERIAL AND METAL DEPOSITED THEREON; AND FILING THE VOIDS LEFT BY THE REMOVED RESIST MATERIAL WITH A PHOSPHORESCENT MATERIAL.
Claim 2
Independent Claim
123 words
THE METHOD OF MAKING AN OPTICAL FIBER PHOSPHOR SCREEN COMPRISING THE STEP OF: APPLYING TO ONE SIDE OF AN OPTICAL FIBER PLATE IN WHICH THE FIBERS HAVE OPAQUE COATINGS, A COATING OF A PHOTOSENSITIVE RESIST MATERIAL OF THICKNESS EQUAL TO THE DESIRED PHOSPHOR DEPTH; EXPOSING SAID PHOTOSENSITIVE RESIST MATERIAL TO LIGHT PASSED THROUGH THE OPTICAL FIBERS FROM THE OTHER SIDE OF SAID PLATE; DEVELOPING THE RESIST IMAGE BY REMOVING THE UNEXPOSED RESIST MATERIAL; VACUUM DEPOSITING FROM THE VAPOR STATE A LAYER OF METAL OVER THE AREA CONTAINING THE RESIST IMAGE TO A DEPTH EQUAL TO THE THICKNESS OF THE RESIST MATERIAL; REMOVING THE RESIST MATERIAL AND METAL DEPOSITED THEREON; AND FILING THE VOIDS LEFT BY THE REMOVED RESIST MATERIAL WITH A PHOSPHORESCENT MATERIAL.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |