US3423593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical beam position sensor
Assignee: AT&T Inc
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Filing: 1966-10-28
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Granted: 1969-01-21
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Expires: 1986-10-28
Abstract
No abstract record available.
Inventors
- 👤 Edwin L Chinnock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:33
CPC Classifications
G; G01; G01J; G01J1/00; G01J1/02; G01J1/0266; G01J1/04; G01J1/0407; G01J1/0414; G01S; G01S3/00; G01S3/78; G01S3/782; G01S3/783
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
IN COMBINATION: AN OPTICAL WAVEGUIDE FOR GUIDING A BEAM OF OPTICAL WAVE ENERGY THEREALONG; A BEAM POSITION SENSOR DISPOSED ALONG SAID WAVEGUIDE COMPRISING WAVE DEFLECTING MEANS SYMMETRICALLY DISPOSED ABOUT SAID WAVEGUIDE FOR INTERCEPTING A FRACTION OF THE ENERGY OF SAID BEAM AND FOR DIRECTING SAID INTERCEPTED ENERGY OUT OF SAID WAVEGUIDE; FOUR PHOTOSENSITIVE ELEMENTS DISPOSED ABOUT SAID SENSOR FOR RECEIVING PORTIOINS OF SAID INTERCEPTED ENERGY; AND MEANS FOR COUPLING BETWEEN SAID ELEMENTS AND EXTERNAL BEAM POSITION CONTROL MEANS.
Claim 2
Dependent Claim
78 words
IN COMBINATION: AN OPTICAL WAVEGUIDE FOR GUIDING A BEAM OF OPTICAL WAVE ENERGY THEREALONG; A BEAM POSITION SENSOR DISPOSED ALONG SAID WAVEGUIDE COMPRISING WAVE DEFLECTING MEANS SYMMETRICALLY DISPOSED ABOUT SAID WAVEGUIDE FOR INTERCEPTING A FRACTION OF THE ENERGY OF SAID BEAM AND FOR DIRECTING SAID INTERCEPTED ENERGY OUT OF SAID WAVEGUIDE; FOUR PHOTOSENSITIVE ELEMENTS DISPOSED ABOUT SAID SENSOR FOR RECEIVING PORTIOINS OF SAID INTERCEPTED ENERGY; AND MEANS FOR COUPLING BETWEEN SAID ELEMENTS AND EXTERNAL BEAM POSITION CONTROL MEANS.
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) | 1972-01-21 | 1972-07-22 | 1973-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-21 | 1976-07-22 | 1977-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-21 | 1980-07-22 | 1981-01-21 | $7700.00 | Window Closed / Lapsed |