US3140340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reflex reflector article
Assignee: 3M Co
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Filing: 1961-03-01
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Granted: 1964-07-07
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Expires: 1981-03-01
Abstract
No abstract record available.
Inventors
- 👤 Weber Victor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:25
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/12; G02B5/122; G02B5/124
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A BRILLIANTLY-REFLECTIVE, WIDE-ANGULARITY, REFLEX-REFLECTING DEVICE COMPRISING A PLATE OF TRANSPARENT MATERIAL HAVING A PLURALITY OF CUBE-CORNER RETRO-REFLECTING UNITS DISPOSED ON THE REAR SURFACE THEREOF, AND AN UNDERLYING HIGH BRILLIANCY WIDE-ANGLE BEADED REFLEX-REFLECTOR SHEET IN SUCH SPACED RELATION FROM SAID RETRO-REFLECTING UNITS THAT WIDE ANGULARITY LIGHT TRANSMITTED THROUGH SAID PLATE OF TRANSPARENT MATERIAL UPON SAID UNDERLYING SHEET IS LARGELY REFLEX-REFLECTED BY SAID SHEET AND TRANSMITTED BACK THROUGH SAID PLATE SUBSTANTIALLY TOWARD THE SOURCE OF SAID LIGHT, THE PERIPHERAL EDGE PORTIONS OF SAID PLATE AND SHEET BEING HERMETICALLY SEALED.
Claim 2
Dependent Claim
87 words
A BRILLIANTLY-REFLECTIVE, WIDE-ANGULARITY, REFLEX-REFLECTING DEVICE COMPRISING A PLATE OF TRANSPARENT MATERIAL HAVING A PLURALITY OF CUBE-CORNER RETRO-REFLECTING UNITS DISPOSED ON THE REAR SURFACE THEREOF, AND AN UNDERLYING HIGH BRILLIANCY WIDE-ANGLE BEADED REFLEX-REFLECTOR SHEET IN SUCH SPACED RELATION FROM SAID RETRO-REFLECTING UNITS THAT WIDE ANGULARITY LIGHT TRANSMITTED THROUGH SAID PLATE OF TRANSPARENT MATERIAL UPON SAID UNDERLYING SHEET IS LARGELY REFLEX-REFLECTED BY SAID SHEET AND TRANSMITTED BACK THROUGH SAID PLATE SUBSTANTIALLY TOWARD THE SOURCE OF SAID LIGHT, THE PERIPHERAL EDGE PORTIONS OF SAID PLATE AND SHEET BEING HERMETICALLY SEALED.
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) | 1967-07-07 | 1968-01-06 | 1968-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-07 | 1972-01-06 | 1972-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-07 | 1976-01-06 | 1976-07-07 | $7700.00 | Window Closed / Lapsed |