US2707162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recording of electronic images
Assignee: JULIUS CATO VREDENBURG INGLESB
•
Filing: 1951-10-09
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Granted: 1955-04-26
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Expires: 1971-10-09
Abstract
No abstract record available.
Inventors
- 👤 Fries Gustav
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:38
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/84; G; G03; G03C; G03C1/00; G03C1/72; G03C1/725; G11; G11B; G11B9/00; Y; Y10; Y10S; Y10S101/00; Y10S101/37
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
METHOD OF PRODUCING A TRANSPARENT ELECTRON-SENSITIVE RECORD CARRIER, WHICH COMPRISES FORMING ON A SHEET OF TRANSPARENT MATERIAL A TRANSPARENT IONIC-CRYSTAL LAYER BY VAPOR-DEPOSITING IONIC-CRYSTAL MATERIAL OF THE TYPE WHICH CHANGES COLOR UNDER ELECTRON BOMBARDMENT OF SAID SHEET IN A HIGH VACUUM, APPLYING OVER SAID IONIC-CRYSTAL LAYER WHILE STILL IN THE HIGH VACUUM AND STILL TRANSPARENT, AN AIR-IMPERVIOUS BUT ELECTRON-PERVIOUS PROTECTIVE LAYER OF TRANSPARENT MATERIAL, AND SEALING SAID LAYER TO SAID SHEET SO AS TO FORM JOINTLY WITH SAID SHEET AN AIR-TIGHT CRYSTAL LAYER WHEN THE RECORD CARRIER IS SUBSEQUENTLY REMOVED FROM THE VACUUM.
Claim 2
Dependent Claim
93 words
METHOD OF PRODUCING A TRANSPARENT ELECTRON-SENSITIVE RECORD CARRIER, WHICH COMPRISES FORMING ON A SHEET OF TRANSPARENT MATERIAL A TRANSPARENT IONIC-CRYSTAL LAYER BY VAPOR-DEPOSITING IONIC-CRYSTAL MATERIAL OF THE TYPE WHICH CHANGES COLOR UNDER ELECTRON BOMBARDMENT OF SAID SHEET IN A HIGH VACUUM, APPLYING OVER SAID IONIC-CRYSTAL LAYER WHILE STILL IN THE HIGH VACUUM AND STILL TRANSPARENT, AN AIR-IMPERVIOUS BUT ELECTRON-PERVIOUS PROTECTIVE LAYER OF TRANSPARENT MATERIAL, AND SEALING SAID LAYER TO SAID SHEET SO AS TO FORM JOINTLY WITH SAID SHEET AN AIR-TIGHT CRYSTAL LAYER WHEN THE RECORD CARRIER IS SUBSEQUENTLY REMOVED FROM THE VACUUM.
References Cited (Backward Citations)
US1213150A
Cited
US1871046A
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US1998465A
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US1912887A
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US2357809A
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US2372170A
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US2400389A
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US2447805A
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US2541478A
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US2549546A
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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) | 1958-04-25 | 1958-10-25 | 1959-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-25 | 1962-10-25 | 1963-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-25 | 1966-10-25 | 1967-04-26 | $7700.00 | Window Closed / Lapsed |