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US2903507A
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Electro-optical contour enhancement
Assignee: Individual
•
Filing: 1954-04-23
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Granted: 1959-09-08
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Expires: 1974-04-23
Abstract
No abstract record available.
Inventors
- 👤 Leslie S G Kovasznay
- 👤 Horace M Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:22
CPC Classifications
H; H04; H04N; H04N3/00; H04N3/10; H04N3/30; H04N3/34; H04N5/00; H04N5/30; H04N5/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1839706A
Cited
US2227630A
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US2480423A
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US2480424A
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US2709716A
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US2678389A
Cited
US2678964A
Cited
US2759044A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-07 | 1963-03-09 | 1963-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-07 | 1967-03-09 | 1967-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-07 | 1971-03-09 | 1971-09-08 | $7700.00 | Window Closed / Lapsed |