Patent US3722781A successfully refreshed from Google Patents.
US3722781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foldable carry out serving tray
Assignee: CONS PACKAGING CORP
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Filing: 1971-06-28
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Granted: 1973-03-27
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Expires: 1991-06-28
Abstract
Abstract A collapsible tray foldable from one sheet of material such as paperboard having two partly overlapping bottom panel sections, opposite side panels and a top panel which is cut out to form cup retaining apertures and a large rectangular sandwich retaining aperture; which cut-outs provide first hinged struts parallel to the side panels and having end hinged flaps connected between the overlapping bottom panel sections, and second hinged struts transverse to the side panels having end hinged flaps which may engage notches which lock in the edge of the upper overlapping bottom panel section, and one of whose ends abuts one side panel, for locking the tray in its erected position. One side edge of this one side panel also may have a reinforcing flange therealong to prevent bending of the tray.
Inventors
- 👤 W Page
- 👤 G Spillson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:08
CPC Classifications
B; B65; B65D; B65D71/00; B65D71/70; B65D71/72; B65D5/00; B65D5/38; B65D2571/00; B65D2571/00123; B65D2571/00833; B65D2571/00925; Y; Y10; Y10S; Y10S229/00; Y10S229/902; Y10S229/904
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
135 words
A collapsible paperboard tray comprising: 1. a bottom panel having a. two sections with overlapping edges, and b. adhesive means for attaching said edges, 2. a pair of parallel side panels hinged along one edge thereof to two opposite edges of said bottom panel, and 3. a top panel hinged along the other edges of said pair of said panels, said top panel having a partition flap hinged to said top panel and extending transversely between said side panels and to said bottom panel, said flap having a hinged flange extending parallel to and across the underlying bottom section, one end of which flange lockingly engages the edge of the upper and overlapping bottom section, which abutting edge is parallel to said side panels, and the opposite end of said flange abuts a side panel.
Claim 2
Dependent Claim
135 words
A collapsible paperboard tray comprising: 1. a bottom panel having a. two sections with overlapping edges, and b. adhesive means for attaching said edges, 2. a pair of parallel side panels hinged along one edge thereof to two opposite edges of said bottom panel, and 3. a top panel hinged along the other edges of said pair of said panels, said top panel having a partition flap hinged to said top panel and extending transversely between said side panels and to said bottom panel, said flap having a hinged flange extending parallel to and across the underlying bottom section, one end of which flange lockingly engages the edge of the upper and overlapping bottom section, which abutting edge is parallel to said side panels, and the opposite end of said flange abuts a side panel.
Claim 3
Dependent Claim
20 words
a pair of parallel side panels hinged along one edge thereof to two opposite edges of said bottom panel, and
Claim 4
Dependent Claim
20 words
a pair of parallel side panels hinged along one edge thereof to two opposite edges of said bottom panel, and
Claim 5
Dependent Claim
40 words
A tray according to claim 1 wherein said edge of said upper and overlapping section of said bottom panel has a notch therein, and said one end of said flange hinged to said transverse partition flap seats in said notch.
Claim 6
Dependent Claim
20 words
a pair of parallel side panels hinged along one edge thereof to two opposite edgEs of said bottom panel, and
Claim 7
Dependent Claim
20 words
a pair of parallel side panels hinged along one edge thereof to two opposite edgEs of said bottom panel, and
Claim 8
Dependent Claim
22 words
A tray according to claim 2 wherein said notch comprises a step in said edge of said upper overlapping bottom panel section.
Claim 9
Dependent Claim
89 words
a top panel hinged along the other edges of said pair of said panels, said top panel having a partition flap hinged to said top panel and extending transversely between said side panels and to said bottom panel, said flap having a hinged flange extending parallel to and across the underlying bottom section, one end of which flange lockingly engages the edge of the upper and overlapping bottom section, which abutting edge is parallel to said side panels, and the opposite end of said flange abuts a side panel.
Claim 10
Dependent Claim
89 words
a top panel hinged along the other edges of said pair of said panels, said top panel having a partition flap hinged to said top panel and extending transversely between said side panels and to said bottom panel, said flap having a hinged flange extending parallel to and across the underlying bottom section, one end of which flange lockingly engages the edge of the upper and overlapping bottom section, which abutting edge is parallel to said side panels, and the opposite end of said flange abuts a side panel.
Claim 11
Dependent Claim
140 words
a top panel hinged along the other edges of said pair of side panels, said top panel having a. a first strut hinged to said top panel and extending parallel to said side panels to and partly across said bottom panel, said first strut having a hinged flap adhered to said bottom panel, and b. a second strut hinged to said top panel and extending transversely between said side panels to said bottom panel, said second strut having a hinged flange extending parallel thereto and across the underlying bottom section of said bottom panel, one end of which flange lockingly engages said notch in said edge of said upper and overlapping bottom section, which edge is parallel to said side panels, and the opposite end of said flange abuts a side panel, to lock said tray into its erected position.
Claim 12
Dependent Claim
140 words
a top panel hinged along the other edges of said pair of side panels, said top panel having a. a first strut hinged to said top panel and extending parallel to said side panels to and partly across said bottom panel, said first strut having a hinged flap adhered to said bottom panel, and b. a second strut hinged to said top panel and extending transversely between said side panels to said bottom panel, said second strut having a hinged flange extending parallel thereto and across the underlying bottom section of said bottom panel, one end of which flange lockingly engages said notch in said edge of said upper and overlapping bottom section, which edge is parallel to said side panels, and the opposite end of said flange abuts a side panel, to lock said tray into its erected position.
Claim 13
Dependent Claim
21 words
A tray according to claim 1 wherein said side panel includes a reinforcing flange along at least one longitudinal edge thereof.
Claim 14
Dependent Claim
24 words
A tray according to claim 4 wherein said reinforcing flange is of a double thickness and projects outwardly from an edge of said tray.
Claim 15
Dependent Claim
16 words
A tray according to claim 1 including at least two partition flaps in said top panel.
Claim 16
Dependent Claim
37 words
A tray according to claim 1 wherein said top panel includes a hinged strut cut out of said top panel extending parallel to said side panels to said bottom panel and is attached to said bottom panel.
Claim 17
Dependent Claim
20 words
A tray according to claim 7 wherein said strut is adhered to said bottom panel between said overlapping sections thereof.
Claim 18
Dependent Claim
5 words
A collapsible paperboard tray comprising:
Claim 19
Dependent Claim
5 words
A collapsible paperboard tray comprising:
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) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |