US3702213A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reflex light reflector sheet and method for its manufacture
Assignee: D Swarovski KG
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Filing: 1969-07-30
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Granted: 1972-11-07
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Expires: 1989-07-30
Abstract
Abstract REFLEX LIGHT REFLECTOR SHEET OF THE KIND WHEREIN A SPACER LAYER IS INTERPOSED BETWEEN SUBSTANTIAL SPHERICAL TRANSPARENT BEADS AND A REAR MIRROR SURFACE. THE SPACER LAYER IS FORMED FROM A SMOOTH, PREFABRICATED SELF-SUPPORTING TRANSPARENT PLASTIC FOIL WHICH IS DEFORMED SO AS TO SNYGLY CONFORM TO AND ENVELOP THE REAR CONTOURS OF THE SPHERICAL BEADS. THE DEFORMATION OF THE SPACER LAYER FOIL IS ACCOMPLISHED BY SUBJECTING THE FOIL WITH THE BEADS PLACED THEREON TO A PRESSURE DIFFERENTIAL SUCH AS BY APPLYING VACUUM TO ONE SIDE OF THE FOIL. A PLANE COVER MAY BE SUPERIMPOSED ON THE FRONT PORTION OF THE BEADS AND THE BEADS ARE BONDED BY A SUITABLE BINDER.
Inventors
- 👤 Kurt Schwab
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:20
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/12; G02B5/126; G02B5/128
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-11-07 | 1976-05-08 | 1976-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-07 | 1980-05-08 | 1980-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-07 | 1984-05-08 | 1984-11-07 | $7700.00 | Window Closed / Lapsed |