Patent US3923368A successfully refreshed from Google Patents.
US3923368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Kaleidoscope
Assignee: Individual
•
Filing: 1974-06-12
•
Granted: 1975-12-02
•
Expires: 1994-06-12
Abstract
Abstract A book, poster, or other graphic work has a decorative, varied path that winds about the work, and it has a kaleidoscope assembled from flat, die-cut reflective material, the kaleidoscope being used to view and follow the path on the graphic work. The assembled kaleidoscope preferrably has three internal reflective faces folded to be at 60 degrees to each other and a tab extending through a slit securing the folded faces together, the tab projecting from the assembled kaleidoscope and serving as its handle. A round eye piece containing a triangular opening corresponding to the end of the kaleidoscope is fixed thereover to protect the eye of a user from sharp corners.
Inventors
- 👤 Jon M Hassel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:23
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/02; G02B27/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
205 words
A kaleidoscope for viewing a graphic work, said kaleidoscope being assembled from a single blank of sheet material having a reflective surface, said kaleidoscope comprising, in combination, a center panel and two endmost panels die cut from said blank and foldably joined side by side, said panels being folded to form a prismatic body having three reflective surfaces at 60* to each other within said body, one of said endmost panels having a side tab containing a slit and the other of said endmost panels having a grip tab which passes through said slit in assembly joining said endmost panels and projects outward from the panels to form a handle for said kaleidoscope, a rounded eye piece die cut from said blank containing a triangular opening of the same size as the end of said body to which said eye piece is attached, end flaps of said panels containing slits, said end flaps being folded outward from the end of said body to which said eye piece is attached, and three eye piece tabs extending inward from the sides of said triangular opening, said eye piece tabs being folded and inserted through the slits in said end flaps securing said eye piece to said body.
Claim 2
Dependent Claim
205 words
A kaleidoscope for viewing a graphic work, said kaleidoscope being assembled from a single blank of sheet material having a reflective surface, said kaleidoscope comprising, in combination, a center panel and two endmost panels die cut from said blank and foldably joined side by side, said panels being folded to form a prismatic body having three reflective surfaces at 60* to each other within said body, one of said endmost panels having a side tab containing a slit and the other of said endmost panels having a grip tab which passes through said slit in assembly joining said endmost panels and projects outward from the panels to form a handle for said kaleidoscope, a rounded eye piece die cut from said blank containing a triangular opening of the same size as the end of said body to which said eye piece is attached, end flaps of said panels containing slits, said end flaps being folded outward from the end of said body to which said eye piece is attached, and three eye piece tabs extending inward from the sides of said triangular opening, said eye piece tabs being folded and inserted through the slits in said end flaps securing said eye piece to said body.
References Cited (Backward Citations)
US984198A
Cited
US1623545A
Cited
US1861206A
Cited
US2075259A
Cited
US2232953A
Cited
US2452363A
Cited
US2900867A
Cited
US3066571A
Cited
US2965376A
Cited
US3111878A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-01 | 1979-06-02 | 1979-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-01 | 1983-06-02 | 1983-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-01 | 1987-06-02 | 1987-12-02 | $7700.00 | Window Closed / Lapsed |