US3188477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light beam positioning system
Assignee: AT&T Inc
•
Filing: 1961-08-17
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Granted: 1965-06-08
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Expires: 1981-08-17
Abstract
No abstract record available.
Inventors
- 👤 Cyrus F Ault
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:23
CPC Classifications
G; G11; G11C; G11C13/00; G11C13/04; G11C13/048
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A SYSTEM FOR POSITIONING LIGHT ON ANY ONE OF A PLURALITY OF PRESELECTED POSITIONS COMPRISING A LIGHT SOURCE, TARGET MEANS HAVING AT LEAST TWO DISTINCT SETS OF INDIVIDUAL LIGHT-PERVIOUS AREAS, ADJACENT ONES OF SAID LIGHT-PERVIOUS AREAS BEING SEPARATED BY OPAQUE AREAS EACH CORRESPONDING TO ONE OF SAID PRESELECTED POSITIONS FOR SAID LIGHT SOURCE, MEANS INDEPENDENT OF SAID TARGET MEANS FOR FOCUSING LIGHT FROM SAID SOURCE ON SAID TARGET MEANS, A PLURALITY OF LIGHTSENSITIVE MEANS EACH FOR PRODUCING SIGNALS ONLY IN RESPONSE TO THE RECEIPT OF LIGHT FROM SAID SOURCE THROUGH ANY INDIVIDUAL LIGHT-PERVIOUS AREA IN A CORRESPONDING ONE OF SAID SETS OF LIGHT-PERVIOUS AREAS, AND MEANS OPERATIVE IN RESPONSE TO THE RECEIPT OF SAID SIGNALS FOR ALTERING THE POSITION OF SAID LIGHT SOURCE UNTIL THE LIGHT FOCUSED ON SAID TARGET MEANS IMPINGES WHOLLY ON ONE OF SAID OPAQUE AREAS AND FAILS TO REACH SAID LIGHT SENSITIVE MEANS.
Claim 2
Independent Claim
147 words
A SYSTEM FOR POSITIONING LIGHT ON ANY ONE OF A PLURALITY OF PRESELECTED POSITIONS COMPRISING A LIGHT SOURCE, TARGET MEANS HAVING AT LEAST TWO DISTINCT SETS OF INDIVIDUAL LIGHT-PERVIOUS AREAS, ADJACENT ONES OF SAID LIGHT-PERVIOUS AREAS BEING SEPARATED BY OPAQUE AREAS EACH CORRESPONDING TO ONE OF SAID PRESELECTED POSITIONS FOR SAID LIGHT SOURCE, MEANS INDEPENDENT OF SAID TARGET MEANS FOR FOCUSING LIGHT FROM SAID SOURCE ON SAID TARGET MEANS, A PLURALITY OF LIGHTSENSITIVE MEANS EACH FOR PRODUCING SIGNALS ONLY IN RESPONSE TO THE RECEIPT OF LIGHT FROM SAID SOURCE THROUGH ANY INDIVIDUAL LIGHT-PERVIOUS AREA IN A CORRESPONDING ONE OF SAID SETS OF LIGHT-PERVIOUS AREAS, AND MEANS OPERATIVE IN RESPONSE TO THE RECEIPT OF SAID SIGNALS FOR ALTERING THE POSITION OF SAID LIGHT SOURCE UNTIL THE LIGHT FOCUSED ON SAID TARGET MEANS IMPINGES WHOLLY ON ONE OF SAID OPAQUE AREAS AND FAILS TO REACH SAID LIGHT SENSITIVE MEANS.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-07 | 1968-12-07 | 1969-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-07 | 1972-12-07 | 1973-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-07 | 1976-12-07 | 1977-06-08 | $7700.00 | Window Closed / Lapsed |