US2681868A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image amplifier
Assignee: Westinghouse Electric Corp
•
Filing: 1949-08-10
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Granted: 1954-06-22
•
Expires: 1969-08-10
Abstract
No abstract record available.
Inventors
- 👤 Ruric C Mason
- 👤 John W Coltman
- 👤 Lloyd P Hunter
- 👤 Richard L Longini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:40
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/36; H01J29/38; H01J29/385; H01J31/00; H01J31/08; H01J31/50; H01J31/501
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
AN IMAGE AMPLIFIER SYSTEM CHARACTERIZED BY AN INPUT SCREEN HAVING THE PROPERTY OF EMITTING LIGHT TO THE BLUE-NEAR-ULTRA-VIOLET WHEN EXCITED BY X-RADIATION AND A PHOTOSENSITIVE SURFACE CONSISTING ESSENTIALLY OF TWO ALKALI METALS COMPOUNDED WITH AT LEAST ONE ELEMENT OF THE GROUP ARSENIC, ANTIMONY, BISMUTH.
Claim 2
Dependent Claim
44 words
AN IMAGE AMPLIFIER SYSTEM CHARACTERIZED BY AN INPUT SCREEN HAVING THE PROPERTY OF EMITTING LIGHT TO THE BLUE-NEAR-ULTRA-VIOLET WHEN EXCITED BY X-RADIATION AND A PHOTOSENSITIVE SURFACE CONSISTING ESSENTIALLY OF TWO ALKALI METALS COMPOUNDED WITH AT LEAST ONE ELEMENT OF THE GROUP ARSENIC, ANTIMONY, BISMUTH.
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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) | 1957-06-21 | 1957-12-21 | 1958-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-21 | 1961-12-21 | 1962-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-21 | 1965-12-21 | 1966-06-22 | $7700.00 | Window Closed / Lapsed |