US3237331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sign construction
Assignee: Individual
•
Filing: 1963-04-03
•
Granted: 1966-03-01
•
Expires: 1983-04-03
Abstract
No abstract record available.
Inventors
- 👤 Jr Edwin R Gill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:58
CPC Classifications
G; G09; G09F; G09F19/00; G09F19/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
166 words
A CHANGEABLE SIGN COMPRISING A PLURALITY OF DISCRETE SHORT FOCUS SPHERICAL LENSES, A SHIFTABLE SCREEN MOUNTED BEHIND SAID LENSES, AT LEAST A PAIR OF CONTROL AREAS ON SAID SCREEN BEHIND EACH SAID LENS SO THAT IN EACH POSITION OF SAID SCREEN A DIFFERENT ONE OF SAID CONTROL AREAS IS BROUGHT INTO ALIGNMENT WITH EACH SAID LENS, CERTAIN OF SAID CONTROL AREAS ON SAID SCREEN BEING REFLECT REFLECTING AND CERTAIN OF SAID CONTROL AREAS BEING LIGHT ABSORBING, SAID REFLEX REFLECTING AREAS COMPRISING A PLURALITY OF SMALL GLASS BEADS IN OPTICAL CONTACT WITH A REFLECTING SURFACE, SAID LENSES HAVING A DIAMETER AT LEAST 30 TIMES THE DIAMETER OF SAID BEADS, AND MEANS FOR SHIFTING SAID SCREEN FROM ONE POSITION TO ANOTHER POSITION, WHEREBY WHEN SAID SCREEN IS IN ONE POSITION THOSE LENSES IN ALIGNMENT WITH REFLEX REFLECTING CONTROL AREAS BECOME COLLINEATIVE AND YIELD A PARTICULAR MESSAGE AND WHEN SAID SCREEN IS SHIFTED TO ANOTHER POSITION, THOSE LENSES IN ALIGNMENT WITH REFLEX REFLECTING CONTROL AREAS YIELD A SECOND MESSAGE.
Claim 2
Dependent Claim
166 words
A CHANGEABLE SIGN COMPRISING A PLURALITY OF DISCRETE SHORT FOCUS SPHERICAL LENSES, A SHIFTABLE SCREEN MOUNTED BEHIND SAID LENSES, AT LEAST A PAIR OF CONTROL AREAS ON SAID SCREEN BEHIND EACH SAID LENS SO THAT IN EACH POSITION OF SAID SCREEN A DIFFERENT ONE OF SAID CONTROL AREAS IS BROUGHT INTO ALIGNMENT WITH EACH SAID LENS, CERTAIN OF SAID CONTROL AREAS ON SAID SCREEN BEING REFLECT REFLECTING AND CERTAIN OF SAID CONTROL AREAS BEING LIGHT ABSORBING, SAID REFLEX REFLECTING AREAS COMPRISING A PLURALITY OF SMALL GLASS BEADS IN OPTICAL CONTACT WITH A REFLECTING SURFACE, SAID LENSES HAVING A DIAMETER AT LEAST 30 TIMES THE DIAMETER OF SAID BEADS, AND MEANS FOR SHIFTING SAID SCREEN FROM ONE POSITION TO ANOTHER POSITION, WHEREBY WHEN SAID SCREEN IS IN ONE POSITION THOSE LENSES IN ALIGNMENT WITH REFLEX REFLECTING CONTROL AREAS BECOME COLLINEATIVE AND YIELD A PARTICULAR MESSAGE AND WHEN SAID SCREEN IS SHIFTED TO ANOTHER POSITION, THOSE LENSES IN ALIGNMENT WITH REFLEX REFLECTING CONTROL AREAS YIELD A SECOND MESSAGE.
References Cited (Backward Citations)
US1038795A
Cited
US1114267A
Cited
FR510817A
Cited
US2432896A
Cited
US2507975A
Cited
US2852767A
Cited
US2951419A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |