Patent US3153222A successfully refreshed from Google Patents.
US3153222A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electro-optical correlator
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1959-10-07
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Granted: 1964-10-13
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Expires: 1979-10-07
Abstract
No abstract record available.
Inventors
- 👤 Sergei M Fomenko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:41
CPC Classifications
G; G06; G06V; G06V10/00; G06V10/88
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
AN OPTICAL CORRELATOR COMPRISING: A FIRST MASK HAVING AT LEAST ONE IMAGE PATTERN DEFINED BY AREAS OF VARYING TRANSMISSIVITIES; A SECOND MASK POSITIONED IN SPACED RELATION TO SAID FIRST MASK AND HAVING IMAGE PATTERNS DEFINED BY AREAS OF VARYING TRANSMISSIVITIES; A LIGHT SOURCE POSITIONED IN SPACED RELATION TO SAID FIRST MASK, SAID LIGHT SOURCE BEING A MOVABLE, SUBSTANTIALLY POINT LIGHT SOURCE FOR SUBSTANTIALLY UNIFORMLY ILLUMINATING SAID ONE PATTERN ON SAID FIRST MASK AND PROJECTING ITS IMAGE ONTO SAID SECOND MASK IN ACCORDANCE WITH THE POSITION OF SAID MOVABLE, SUBSTANTIALLY POINT LIGHT SOURCE; MEANS FOR MOVING SAID LIGHT SOURCE TO THEREBY MOVE SAID IMAGE ABOUT SAID SECOND MASK, SAID SECOND MASK BEING SO POSITIONED FROM SAID FIRST MASK IN ACCORDANCE WITH RELATIVE SIZES OF IMAGE
Claim 2
Dependent Claim
124 words
AN OPTICAL CORRELATOR COMPRISING: A FIRST MASK HAVING AT LEAST ONE IMAGE PATTERN DEFINED BY AREAS OF VARYING TRANSMISSIVITIES; A SECOND MASK POSITIONED IN SPACED RELATION TO SAID FIRST MASK AND HAVING IMAGE PATTERNS DEFINED BY AREAS OF VARYING TRANSMISSIVITIES; A LIGHT SOURCE POSITIONED IN SPACED RELATION TO SAID FIRST MASK, SAID LIGHT SOURCE BEING A MOVABLE, SUBSTANTIALLY POINT LIGHT SOURCE FOR SUBSTANTIALLY UNIFORMLY ILLUMINATING SAID ONE PATTERN ON SAID FIRST MASK AND PROJECTING ITS IMAGE ONTO SAID SECOND MASK IN ACCORDANCE WITH THE POSITION OF SAID MOVABLE, SUBSTANTIALLY POINT LIGHT SOURCE; MEANS FOR MOVING SAID LIGHT SOURCE TO THEREBY MOVE SAID IMAGE ABOUT SAID SECOND MASK, SAID SECOND MASK BEING SO POSITIONED FROM SAID FIRST MASK IN ACCORDANCE WITH RELATIVE SIZES OF IMAGE
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) | 1967-10-13 | 1968-04-13 | 1968-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-13 | 1972-04-13 | 1972-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-13 | 1976-04-13 | 1976-10-13 | $7700.00 | Window Closed / Lapsed |