Sign for conveying information to an observer moving with respect thereto
Abstract
Abstract A SIGN FOR PRESENTING INFORMATION TO AN OBSERVER OF THE SIGN MOVING WITH RESPECT THERETO WHICH COMPRISES A HOUSING, A PLURALITY OF IDENTICAL OPTICAL OBJECTS LINEARLY DISPOSED WITHIN AND SECURED TO THE HOUSING, EACH OPTICAL OBJECT BEING A REPRESENTATION OF THE INFORMATION THE SIGN IS TO PRESENT, A PLURALITY OF LENSES LINEARLY DISPOSED WITHIN AND SECURED TO THE HOUSING, EACH OF SAID LENSES BEING IN REGISTRY WITH ONE OF SAID OPTICAL OBJECTS AND EACH OF SAID OPTICAL OBJECTS BEING IN THE FOCAL PLANE OF THE LENS WITH WHICH IT IS IN REGISTRY, AND A LIGHT SOURCE TO ILLUMINATE SAID OPTICAL OBJECTS, SO THAT AN OBSERVER MOVING LINEARLY PAST THE SIGN HAS THE IMPRESSION THAT ONLY ONE REPRESENTATION OF THE INFORMATION IS SEEN, WHICH REPRESENTATION APPEARS TO BE STATIONARY WITH RESPECT TO THE OBSERVER''S MOVEMENT.
Inventors
- 👤 Edwin James Smith
Bibliographic Details
Claims Analysis
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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) | 1974-03-08 | 1974-09-07 | 1975-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-08 | 1978-09-07 | 1979-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-08 | 1982-09-07 | 1983-03-09 | $7700.00 | Window Closed / Lapsed |