Patent US2268816A successfully refreshed from Google Patents.
Patent US3220003A successfully refreshed from Google Patents.
US3220003A
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Detector for varying carrier frequency signals
Assignee: SCOPE ACQUISITION CORP A DE CORP
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Filing: 1962-09-25
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Granted: 1965-11-23
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Expires: 1982-09-25
Abstract
No abstract record available.
Inventors
- 👤 Iii Hill Montague
- 👤 John S Gerig
- 👤 Gerhard E Hoffmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:29
CPC Classifications
G; G02; G02F; G02F2/00; G01; G01S; G01S13/00; G01S13/02; G01S13/06; G01S13/08; G01S13/10; G01S13/26; G01S13/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A SYSTEM FOR DETECTING SIGNALS HAVING A PREDETERMINED CARRIER FREQUENCY VARIATION COMPRISING A SOURCE OF MONOCHROMATIC, PARALLEL LIGHT RAYS, AN ULTRASONIC CELL FOR MODULATING SAID RAYS, SAID CELL BEING RESPONSIVE TO SAID SIGNALS, WHEREBY LIGHT DIFFRACTION PATTERNS OF HIGHER THAN ZERO ORDER ARE ESTABLISHED AT PREDETERMINED POINTS IN SPACE, AND MEANS FOR DETECTING WHEN ONE OF SAID PATTERNS IS FOCUSED ON ONE OF SAID PREDETERMINED POINTS.
Claim 2
Independent Claim
66 words
A SYSTEM FOR DETECTING SIGNALS HAVING A PREDETERMINED CARRIER FREQUENCY VARIATION COMPRISING A SOURCE OF MONOCHROMATIC, PARALLEL LIGHT RAYS, AN ULTRASONIC CELL FOR MODULATING SAID RAYS, SAID CELL BEING RESPONSIVE TO SAID SIGNALS, WHEREBY LIGHT DIFFRACTION PATTERNS OF HIGHER THAN ZERO ORDER ARE ESTABLISHED AT PREDETERMINED POINTS IN SPACE, AND MEANS FOR DETECTING WHEN ONE OF SAID PATTERNS IS FOCUSED ON ONE OF SAID PREDETERMINED POINTS.
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) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |