US3589045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for producing a changing pattern
Assignee: VISUAL EFFECTS Inc
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Filing: 1968-12-18
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Granted: 1971-06-29
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Expires: 1988-12-18
Abstract
Abstract Two like designs are formed, one on a transparent surface, with the two designs spatially separated from each other. When the angle of viewing of one design with respect to the other is changed, either through movement of an observer, or through movement of one or both of the design surfaces, the effect created is one of a constantly changing pattern.
Inventors
- 👤 Joseph Rakowsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:24
CPC Classifications
G; G09; G09F; G09F13/00; G09F13/34; G09F13/36; G09F13/04; G09F13/08
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
103 words
Means for creating the effect of a moving, changing design comprising: a. a first transparent surface having a geometric design formed thereon, said design comprising a first set of lines generally parallel to each other, and at least a second set of lines formed at an angle to said first set of lines and connected to said first set of lines at selected points so as to form a regular geometric pattern; and b. a second surface, geometrically spaced to the rear of said first surface and having an identical geometric design thereon, said designs being superimposable in at least one viewing position.
Claim 2
Dependent Claim
103 words
Means for creating the effect of a moving, changing design comprising: a. a first transparent surface having a geometric design formed thereon, said design comprising a first set of lines generally parallel to each other, and at least a second set of lines formed at an angle to said first set of lines and connected to said first set of lines at selected points so as to form a regular geometric pattern; and b. a second surface, geometrically spaced to the rear of said first surface and having an identical geometric design thereon, said designs being superimposable in at least one viewing position.
Claim 3
Dependent Claim
19 words
The means of claim 1 wherein the second surface, prior to application of said design, is translucent or opaque.
Claim 4
Dependent Claim
25 words
The means of claim 1 wherein said surfaces lie in parallel planes and are formed in, respectively, the top and bottom of a display package.
Claim 5
Dependent Claim
32 words
The means of claim 1 wherein said surfaces are cylindrical, the cylindrical surfaces being concentric and spatially separated, at least one of said surfaces being adapted for rotational movement about its axis.
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) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |