Patent US2837660A successfully refreshed from Google Patents.
US2837660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass -
Assignee: —
•
Filing: —
•
Granted: 1958-06-03
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Expires: 1975-06-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:06
CPC Classifications
H; H10; H10F; H10F55/00; H10F55/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
A RADIATION-HANDLING DEVICE COMPRISING ELECTROLUMINESCENT PHOSPHOR MATERIAL, PHOTOSENSITIVE MATERIAL INTERMIXED WITH SAID PHOSPHOR MATERIAL, AND MEANS FOR CONTROLLING OPTICAL FEEDBACK BETWEEN THE PHOSPHOR MATERIAL AND THE PHOTOSENSITIVE MATERIAL.
Claim 2
Dependent Claim
28 words
A RADIATION-HANDLING DEVICE COMPRISING ELECTROLUMINESCENT PHOSPHOR MATERIAL, PHOTOSENSITIVE MATERIAL INTERMIXED WITH SAID PHOSPHOR MATERIAL, AND MEANS FOR CONTROLLING OPTICAL FEEDBACK BETWEEN THE PHOSPHOR MATERIAL AND THE PHOTOSENSITIVE 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) | 1961-06-02 | 1961-12-02 | 1962-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-02 | 1965-12-02 | 1966-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-02 | 1969-12-02 | 1970-06-03 | $7700.00 | Window Closed / Lapsed |