US3499711A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Passive-automatic range finder
Assignee: Aerojet Rocketdyne Inc
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Filing: 1962-04-16
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Granted: 1970-03-10
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Expires: 1982-04-16
Abstract
No abstract record available.
Inventors
- 👤 Sidney C Argyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:31
CPC Classifications
G; G02; G02B; G02B7/00; G02B7/28; G02B7/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A RANGE FINDER, COMPRISING: FIRST MEANS FOR RECEIVING RADIATION ALONG A FIRST PATH FROM A TARGET, THE RANGE OF WHICH IS TO BE DETERMINED; SECOND MEANS FOR RECEIVING RADIATION FROM THE TARGET ALONG A SECOND PATH DIFFFERENT FROM THE FIRST PATH; A RADIATION CHOPPER DISPOSED TO RECEIVE RADIATION FROM THE FIRST AND FROM THE SECOND MEANS, THE RADIATION FROM THE FIRST AND SECOND MEANS BEING FOCUSED AT THE SAME POINT ON THE CHOPPER WHEN THE TARGET IS AT INFINITY; RADIATION SENSITIVE MEANS FOR RECEIVING THE RADIATION FROM THE CHOPPER AND CONVERTING IT INTO CORRESPONDING ELECTRIC SIGNALS; AND PHASE DETECTION MEANS FED BY THE SIGNALS FROM THE RADIATION SENSITIVE MEANS WHEREBY THE PHASE OF THE SIGNALS OBTAINED IS REPRESENTATIVE OF THE RANGE OF THE TARGET.
Claim 2
Dependent Claim
124 words
A RANGE FINDER, COMPRISING: FIRST MEANS FOR RECEIVING RADIATION ALONG A FIRST PATH FROM A TARGET, THE RANGE OF WHICH IS TO BE DETERMINED; SECOND MEANS FOR RECEIVING RADIATION FROM THE TARGET ALONG A SECOND PATH DIFFFERENT FROM THE FIRST PATH; A RADIATION CHOPPER DISPOSED TO RECEIVE RADIATION FROM THE FIRST AND FROM THE SECOND MEANS, THE RADIATION FROM THE FIRST AND SECOND MEANS BEING FOCUSED AT THE SAME POINT ON THE CHOPPER WHEN THE TARGET IS AT INFINITY; RADIATION SENSITIVE MEANS FOR RECEIVING THE RADIATION FROM THE CHOPPER AND CONVERTING IT INTO CORRESPONDING ELECTRIC SIGNALS; AND PHASE DETECTION MEANS FED BY THE SIGNALS FROM THE RADIATION SENSITIVE MEANS WHEREBY THE PHASE OF THE SIGNALS OBTAINED IS REPRESENTATIVE OF THE RANGE OF THE TARGET.
References Cited (Backward Citations)
US2524807A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-09 | 1973-09-08 | 1974-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-09 | 1977-09-08 | 1978-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-09 | 1981-09-08 | 1982-03-10 | $7700.00 | Window Closed / Lapsed |