US2600579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making phosphor screens
Assignee: RCA Corp
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Filing: 1946-06-05
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Granted: 1952-06-17
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Expires: 1966-06-05
Abstract
No abstract record available.
Inventors
- 👤 John E Ruedy
- 👤 Ferd E Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:36
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/20; H01J9/22; H01J9/221
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
THE METHOD OF MAKING A PHOSPHOR SCREEN ON A PLURALITY OF SUPPORTS FROM A PHOSPHOR COMPOUND FORMED OF A METAL FROM THE GROUP CONSISTING OF ZINC AND CADMIUM AND MIXTURES THEREOF AND OF A NON-METAL FROM THE GROUP CONSISTING OF SULFUR AND SELENIUM AND MIXTURES THEREOF, SAID METHOD COMPRISING THE STEPS OF, ARRANGING SAID COMPOUND ADJACENT SAID SUPPORTS WITHIN A VACUUM, VAPORIZING SAID COMPOUND, CONDENSING THE VAPORS OF SAID COMPOUND TO FORM A COATING OF THE CONDENSATE ON A SURFACE OF SAID BASE MEMBERS, PLACING TWO COATED SURFACES OF SAID BASE MEMBER
Claim 2
Independent Claim
92 words
THE METHOD OF MAKING A PHOSPHOR SCREEN ON A PLURALITY OF SUPPORTS FROM A PHOSPHOR COMPOUND FORMED OF A METAL FROM THE GROUP CONSISTING OF ZINC AND CADMIUM AND MIXTURES THEREOF AND OF A NON-METAL FROM THE GROUP CONSISTING OF SULFUR AND SELENIUM AND MIXTURES THEREOF, SAID METHOD COMPRISING THE STEPS OF, ARRANGING SAID COMPOUND ADJACENT SAID SUPPORTS WITHIN A VACUUM, VAPORIZING SAID COMPOUND, CONDENSING THE VAPORS OF SAID COMPOUND TO FORM A COATING OF THE CONDENSATE ON A SURFACE OF SAID BASE MEMBERS, PLACING TWO COATED SURFACES OF SAID BASE MEMBER
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) | 1955-06-17 | 1955-12-17 | 1956-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-17 | 1959-12-17 | 1960-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-17 | 1963-12-17 | 1964-06-17 | $7700.00 | Window Closed / Lapsed |