US3164124A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1963-07-02
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Granted: 1965-01-05
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Expires: 1983-07-02
Abstract
No abstract record available.
Inventors
- 👤 Ehrsam Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:14
CPC Classifications
G; G09; G09F; G09F13/00; G09F13/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
A SIGNAL MIRROR COMPRISING A SUBSTANTIALLY PLANAR UPPER AND LOWER PORTION SPACED FROM ONE ANOTHER BUT HAVING PORTIONS IN MATING RELATIONSHIP TO FORM A WATERPROOF HOLLOW OUTER SHELL, SHEET-LIKE ELEMENTS HAVING AN OUTWARDLY DIRECTED MIRRORED SURFACE, EACH OF SAID PLANAR PORTIONS SUPPORTING ONE OF SAID ELEMENTS AND SUBSTANTIALLY COEXTENSIVE THEREWITH, SAID SHELL BEING OF LIGHTER WEIGHT THAN AN EQUAL VOLUME OF WATER WHEREBY IT FLOATS, SAID SHELL HAVING EXTERNAL DIMENSIONS SUCH THAT WHEN SAID MIRROR IS FLOATING AT LEAST ONE OF SAID MIRRORED SURFACES IS POSITIONED UPWARDLY TO REFLECT LIGHT IMPINGING THEREUPON, COEXTENSIVE OFFSET PORTIONS RECESSED IN SAID UPPER AND LOWER PORTIONS RESPECTIVELY, CONFRONTING ONE ANOTHER AND DEFINING A SIGHTING WINDOW, SAID SIGHTING WINDOW COMPRISING A RETROREFLECTIVE ELEMENT INTERPOSED AND HELD IN PLACE BETWEEN SAID CONFRONTING OFFSET PORTIONS, SAID RETROREFLECTIVE ELEMENT CONFORMING IN CONFIGURATION TO SAID OFFSET PORTION, A SIGHTING APERTURE IN SAID RETROREFLECTIVE ELEMENT ADAPTED TO ENABLE SIGHTING OF A TARGET TO WHICH IT IS DESIRED TO REFLECT LIGHT FROM SAID REFLECTING MEANS.
Claim 2
Dependent Claim
164 words
A SIGNAL MIRROR COMPRISING A SUBSTANTIALLY PLANAR UPPER AND LOWER PORTION SPACED FROM ONE ANOTHER BUT HAVING PORTIONS IN MATING RELATIONSHIP TO FORM A WATERPROOF HOLLOW OUTER SHELL, SHEET-LIKE ELEMENTS HAVING AN OUTWARDLY DIRECTED MIRRORED SURFACE, EACH OF SAID PLANAR PORTIONS SUPPORTING ONE OF SAID ELEMENTS AND SUBSTANTIALLY COEXTENSIVE THEREWITH, SAID SHELL BEING OF LIGHTER WEIGHT THAN AN EQUAL VOLUME OF WATER WHEREBY IT FLOATS, SAID SHELL HAVING EXTERNAL DIMENSIONS SUCH THAT WHEN SAID MIRROR IS FLOATING AT LEAST ONE OF SAID MIRRORED SURFACES IS POSITIONED UPWARDLY TO REFLECT LIGHT IMPINGING THEREUPON, COEXTENSIVE OFFSET PORTIONS RECESSED IN SAID UPPER AND LOWER PORTIONS RESPECTIVELY, CONFRONTING ONE ANOTHER AND DEFINING A SIGHTING WINDOW, SAID SIGHTING WINDOW COMPRISING A RETROREFLECTIVE ELEMENT INTERPOSED AND HELD IN PLACE BETWEEN SAID CONFRONTING OFFSET PORTIONS, SAID RETROREFLECTIVE ELEMENT CONFORMING IN CONFIGURATION TO SAID OFFSET PORTION, A SIGHTING APERTURE IN SAID RETROREFLECTIVE ELEMENT ADAPTED TO ENABLE SIGHTING OF A TARGET TO WHICH IT IS DESIRED TO REFLECT LIGHT FROM SAID REFLECTING 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) | 1968-01-05 | 1968-07-06 | 1969-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-05 | 1972-07-06 | 1973-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-05 | 1976-07-06 | 1977-01-05 | $7700.00 | Window Closed / Lapsed |