US2726940A
Expired / Lapsed
US
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Assignee: International Business Machines Corp
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Filing: 1954-11-03
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Granted: 1955-12-13
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Expires: 1974-11-03
Abstract
No abstract record available.
Inventors
- 👤 Buhler Eugen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:28
CPC Classifications
G; G06; G06K; G06K15/00; G06K15/02; G06K15/14; G03; G03G; G03G15/00; G03G15/22; G03G15/32; G03G15/326; Y; Y10; Y10S; Y10S101/00; Y10S101/37
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
IN A LINE-BY-LINE PHOTO RECORDER INCLUDING A CONTINUOUSLY ROTATING DRUM HAVING A PLURALITY OF TRANSPARENT CHARACTES ARRANGED IN COLUMNS WITH CORRESPONDING CHARACTES IN SAID COLUMNS BEING ALIGNED LATERALLY, THE COMBINATION OF: A PHOTO SENSITIVE MEDIUM POSITIONED ADJACENT ONE SURFACE OF SAID DRUM; A PLURALITY OF ARC UNITS POSITIONED ADJACENT THE OTHER SURFACE OF SAID DRUM FOR PROJECTING IMAGES OF SAID CHARACTERS; MEANS FOR TRIGGERING SAID ARC UNITS AT SELECTED FIFFERENTIAL TIMES DURING THE TRANSIT OF SAID COLUMNS OF CHARACTERS PAST SAID ARC UNITS; A PLURALITY OF LENSES INTERPOSED BETWEEN SAID DRUM AND SAID PHOTOSENSITIVE MEDIUM FOR FOCUSING SAID PROJECTED IMAGES ON SAID PHOTO SENSITIVE MEDIUM; AND MEANS FOR DEVELOPING SAID PROJECTED IMAGES.
Claim 2
Dependent Claim
66 words
A PHOTO RECORDER ACCORDING TO CHAIM 2, WHEREIN SAID PHOTO SENSITIVE MEANS AND FOR DEVELOPING SAID IMAGES COMPRISING A PHOTO EMISSIVE MEMBER FOR EMITTING ELECTRONS; A CHARGED MEMBER FOR ATTRACTING SAID EMITTED ELECTRONS; A RECORD SHEET INTEROSED BETWEEN SAID PHOTO EMISSIVE AND SAID CHARGED MEMBERS FOR RECEIVING SAID ELECTRONS WHEREBY LATENT IMAGES OF SAID PROJECTED CHARACTERS ARE FORMED THEREON; POWDERING MEANS FOR DEVELOPING SAID LATENT IMAGES.
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) | 1958-12-12 | 1959-06-13 | 1959-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-12 | 1963-06-13 | 1963-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-12 | 1967-06-13 | 1967-12-13 | $7700.00 | Window Closed / Lapsed |