US3315083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light-tight photoelectric film reader
Assignee: Eastman Kodak Co
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Filing: 1963-04-24
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Granted: 1967-04-18
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Expires: 1983-04-24
Abstract
No abstract record available.
Inventors
- 👤 Clifford B Bushnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:17
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/24; G01; G01N; G01N21/00; G01N21/84; G01N21/86; G03B21/00; G03B21/14; G03B21/32; G03B21/43
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
87 words
A DETECTOR FOR DEVELOPING SIGNAL INFORMATION INDICATIVE OF MARKS ON ONE SURFACE OF A PAPER WEB FOR USE OF DOWNSTREAM EQUIPMENTS WHICH OPERATE ON THE WEB, COMPRISING: AN OPAQUE DETECTION STATION; AN OPAQUE FLANGED IDLER FOR CONVEYING THE PAPER WEB PAST SAID DETECTION STATION WITH THE INFORMATION EXPOSED THERETO; OPAQUE MEANS SUBSTANTIALLY ENCLOSING THE FLANGE OF SAID IDLER THROUGHOUT THE REGION OF SAID DETECTION STATION; MEANS FOR SELECTIVELY ILLUMINATING THE PAPER WEB IN SAID DETECTION STATION; AND MEANS FOR DETECTING THE REFLECTANCE OF THE ILLUMINATED PAPER WEB.
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) | 1970-04-17 | 1970-10-17 | 1971-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-17 | 1974-10-17 | 1975-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-17 | 1978-10-17 | 1979-04-18 | $7700.00 | Window Closed / Lapsed |