Patent US3290503A successfully refreshed from Google Patents.
US3290503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light communication system
Assignee: Raytheon Co
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Filing: 1963-05-06
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Granted: 1966-12-06
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Expires: 1983-05-06
Abstract
No abstract record available.
Inventors
- 👤 Charles W Staufenberg
- 👤 Donald H Ward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:05
CPC Classifications
H; H04; H04B; H04B10/00; H04B10/11; H04B10/112; H04B10/1121
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A LIGHT COMMUNICATION SYSTEM COMPRISING: AN APLANATIC MIRROR; A SOURCE OF LIGHT AND A MOVABLE MIRROR LOCATED AT APLANATIC FOCAL POINTS OF SAID APLANATIC MIRROR AND SPACED-APART THEREFROM, THE LIGHTFROM SAID SOURCE BEING REFLECTED BY SAID APLANATIC MIRROR TO SAID MOVABLE MIRROR; AN OBJECTIVE MIRROR; PHOTOSENSITIVE MEANS; A TWO-POSITION MIRROR MEANS FOR BLOCKING THE LIGHT PATH BETWEEN SAID PHOTOSENSITIVE MEANS AND SAID OBJECTIVE MIRROR DURING ONE INTERVAL AND FOR DIRECTING LIGHT FROM SAID MOVABLE MIRROR TOWARD SAID OBJECTIVE MIRROR DURING THE SAME INTERVAL WHEN SAID TWOPOSITION MIRROR IS LOCATED IN A FIRST POSITION; AND MEANS FOR REMOVING AND PLACING SAID TWO-POSITION MIRROR IN A SECOND POSITION DURING ANOTHER INTERVAL SO THAT INCIDENT LIGHT FROM ANOTHER SOURCE FALLING UPON SAID OBJECTIVE MIRROR IS FOCUSED ON SAID PHOTOSENSITIVE MEANS,
Claim 2
Dependent Claim
127 words
A LIGHT COMMUNICATION SYSTEM COMPRISING: AN APLANATIC MIRROR; A SOURCE OF LIGHT AND A MOVABLE MIRROR LOCATED AT APLANATIC FOCAL POINTS OF SAID APLANATIC MIRROR AND SPACED-APART THEREFROM, THE LIGHTFROM SAID SOURCE BEING REFLECTED BY SAID APLANATIC MIRROR TO SAID MOVABLE MIRROR; AN OBJECTIVE MIRROR; PHOTOSENSITIVE MEANS; A TWO-POSITION MIRROR MEANS FOR BLOCKING THE LIGHT PATH BETWEEN SAID PHOTOSENSITIVE MEANS AND SAID OBJECTIVE MIRROR DURING ONE INTERVAL AND FOR DIRECTING LIGHT FROM SAID MOVABLE MIRROR TOWARD SAID OBJECTIVE MIRROR DURING THE SAME INTERVAL WHEN SAID TWOPOSITION MIRROR IS LOCATED IN A FIRST POSITION; AND MEANS FOR REMOVING AND PLACING SAID TWO-POSITION MIRROR IN A SECOND POSITION DURING ANOTHER INTERVAL SO THAT INCIDENT LIGHT FROM ANOTHER SOURCE FALLING UPON SAID OBJECTIVE MIRROR IS FOCUSED ON SAID PHOTOSENSITIVE 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) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |