Patent US4002233A successfully refreshed from Google Patents.
US4002233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Knock-down display case kit
Assignee: Lawrence Peska Associates Inc
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Filing: 1976-02-20
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Granted: 1977-01-11
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Expires: 1996-02-20
Abstract
Abstract A knock-down case kit for different size contents including size panels having dovetail grooves slidably receiving complemental slides on the bottom edges of mirror-image top, bottom, front and back panels. The two bottom panels are hingedly connected to each other and a handle and complementary latch element are detachably coupled to the top panels. In order to vary the depth of the assembled case, alternate size top, bottom, front and back panels are provided in the kit which may be substituted for like panels. Each panel is made from transparent plastic so the contents may be displayed without opening the assembled case.
Inventors
- 👤 Vernon Page, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:04
CPC Classifications
B; B65; B65D; B65D11/00; B65D11/18; B65D11/1866; B65D11/1873; A; A45; A45C; A45C13/00; A45C7/00; A45C7/0018; A45C7/005
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
90 words
A knock-down portfolio case kit comprising: a pair of identical rectangular side panels; a pair of identical rectangular top panels; a pair of identical rectangular bottom panels; a pair of identical rectangular front and back panels; means on said top, bottom, front and back panels for slidably connecting one of said panels to each of said side panels; removable hinge means pivotally connecting said bottom panels to each other; and alternate top, bottom, front and back panels of a different depth interchangeable with said top, bottom, front and back panels.
Claim 2
Dependent Claim
90 words
A knock-down portfolio case kit comprising: a pair of identical rectangular side panels; a pair of identical rectangular top panels; a pair of identical rectangular bottom panels; a pair of identical rectangular front and back panels; means on said top, bottom, front and back panels for slidably connecting one of said panels to each of said side panels; removable hinge means pivotally connecting said bottom panels to each other; and alternate top, bottom, front and back panels of a different depth interchangeable with said top, bottom, front and back panels.
Claim 3
Dependent Claim
19 words
A knock-down portfolio case kit in accordance with claim 1, wherein all of said panels are rigid, transparent plastic.
Claim 4
Dependent Claim
48 words
A knock-down portfolio case kit in accordance with claim 1, wherein said slidable connection means includes a slide on an edge of each of said top, bottom, front and back panels received within a dovetail groove spaced from each of the edges of one of said side panels.
Claim 5
Dependent Claim
23 words
A knock-down portfolio case kit in accordance with claim 3, wherein each of said slides is complemental in shape to said dovetail grooves.
Claim 6
Dependent Claim
21 words
A knock-down portfolio case kit in accordance with claim 1, including a handle detachably connected to one of said top panels.
Claim 7
Dependent Claim
22 words
A knock-down portfolio case kit in accordance with claim 1, includes mating latch elements detachably connected to each of said top panels.
Claim 8
Dependent Claim
23 words
A knock-down portfolio case kit in accordance with claim 1, including a looseleaf ring binder detachably connected to one of said bottom panels.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-01-11 | 1980-07-12 | 1981-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-01-11 | 1984-07-12 | 1985-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-01-11 | 1988-07-12 | 1989-01-11 | $7700.00 | Window Closed / Lapsed |