US3296444A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical target sensing device using variable density filters
Assignee: Lockheed Martin Corp
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Filing: 1963-08-02
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Granted: 1967-01-03
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Expires: 1983-08-02
Abstract
No abstract record available.
Inventors
- 👤 Marlin Van Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:41
CPC Classifications
F; F41; F41G; F41G7/00; F41G7/20; F41G7/22; F41G7/226; F41G7/2273; F41G7/2293; G; G01; G01S; G01S3/00; G01S3/78; G01S3/781; G01S3/782; G01S3/785; G01S3/786
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
APPARATUS FOR DERIVING TARGET POSITIONAL INFORMATION IN RESPONSE TO LIGHT REFLECTED FROM A TARGET AREA, COMPRISING IN COMBINATION A PLURALITY OF LIGHT CONVEYING PATHS, FILTER MEANS IN EACH PATH HAVING DIFFERENT LIGHT TRANSMISSIVE CHARACTERISTICS TO LIGHT DIRECTED THEREON, MEANS IN EACH PATH FOR CONVERTING LIGHT ENERGY TO ELECTRICAL ENERGY, DISCRIMINATING MEANS FOR SELECTING OUT OF THE ELECTRICAL ENERGY OF EACH PATH A PORTION THEREOF DEVELOPED AS A RESULT OF REFLECTED LIGHT FROM THE TARGET AREA, AND MEANS FOR COMBINING THE SO-SELECTED PORTIONS OF ELECTRICAL ENERGY TO PROVIDE TARGET POSITIONAL INFORMATION.
Claim 2
Dependent Claim
90 words
APPARATUS FOR DERIVING TARGET POSITIONAL INFORMATION IN RESPONSE TO LIGHT REFLECTED FROM A TARGET AREA, COMPRISING IN COMBINATION A PLURALITY OF LIGHT CONVEYING PATHS, FILTER MEANS IN EACH PATH HAVING DIFFERENT LIGHT TRANSMISSIVE CHARACTERISTICS TO LIGHT DIRECTED THEREON, MEANS IN EACH PATH FOR CONVERTING LIGHT ENERGY TO ELECTRICAL ENERGY, DISCRIMINATING MEANS FOR SELECTING OUT OF THE ELECTRICAL ENERGY OF EACH PATH A PORTION THEREOF DEVELOPED AS A RESULT OF REFLECTED LIGHT FROM THE TARGET AREA, AND MEANS FOR COMBINING THE SO-SELECTED PORTIONS OF ELECTRICAL ENERGY TO PROVIDE TARGET POSITIONAL INFORMATION.
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) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |