US3586592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1968-01-15
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Granted: 1971-06-22
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Expires: 1988-01-15
Abstract
Abstract THIS INVENTION IS CONCERNED WITH VARIOUS FORMS OF THREE DIMENSIONAL PICTURES AND CHANGEABLE PICTURES IN WHICH THE THREE DIMENSIONAL AND CHANGEABLE EFFECT IS CREATED BY THE USE OF TWO DIFFERENT VIEWS MADE UP IN ALTERNATE STRIATIONS WHICH ARE PLACED ON CURVED REFLECTING MIRRORS WITHOUT THE USE OF LENTICULAR OR OTHER TYPES OF LENSES, AND IN WHICH FURTHER CURVES TRANSVERSE TO THE FIRST MENTIONED CURVED REFLECTING MIRRORS ARE PROVIDED TO ENHANCE THE BRIGHTNESS AND VIEWABILITY OF THE PICTURE.
Inventors
- 👤 Leo Cahn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:47
CPC Classifications
B; B44; B44F; B44F7/00; G; G03; G03B; G03B35/00; G03B35/18; G03B35/24; G03C; G03C9/00
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) | 1974-06-21 | 1974-12-21 | 1975-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-21 | 1978-12-21 | 1979-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-21 | 1982-12-21 | 1983-06-22 | $7700.00 | Window Closed / Lapsed |