US4463893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Replaceable lid for flanged trays
Assignee: WestRock Minnesota Corp
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Filing: 1983-02-18
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Granted: 1984-08-07
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Expires: 2003-02-18
Abstract
Abstract A replaceable lid for a flanged tray in which the lid has opposed slide channels to receive the tray flanges in order to permit the lid to slide off the tray and be reapplied to the tray. A tamper resistant safety tab may also be provided to prevent tampering with the contents of the tray when the tray is on a shelf. The lid is made of a single blank having two panels with one of the panels having an opening to receive the tray and the other panel being folded over the first panel of the tray and adhered to the first panel along its outer edges.
Inventors
- 👤 William T. Brunone
- 👤 Duane Mode
- 👤 Michael R. Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:26
CPC Classifications
B; B65; B65D; B65D77/00; B65D77/10; B65D77/20; B65D77/2024; B65D5/00; B65D5/32; B65D5/42; B65D5/64; B65D5/66; B65D2577/00; B65D2577/10; B65D2577/20; B65D2577/2075; B65D2577/2091
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
128 words
A one-piece paperboard blank for forming a lid adapted to close the top of a flanged tray, said blank comprising: (a) a top panel; (b) a bottom panel connected to a side edge of said top panel along a fold line, said bottom panel being approximately the same size and shape as said top panel, and said bottom panel having a central opening therein adapted to receive the flanged tray, and being defined by a plurality of peripheral elements interposed between adjacent outer edges of said bottom panel which peripheral elements surround said opening; and (c) a pair of perforated tear lines extending from an edge of said opening across one of said peripheral elements at opposite ends thereof to a corresponding outer edge of said bottom panel.
Claim 2
Dependent Claim
128 words
A one-piece paperboard blank for forming a lid adapted to close the top of a flanged tray, said blank comprising: (a) a top panel; (b) a bottom panel connected to a side edge of said top panel along a fold line, said bottom panel being approximately the same size and shape as said top panel, and said bottom panel having a central opening therein adapted to receive the flanged tray, and being defined by a plurality of peripheral elements interposed between adjacent outer edges of said bottom panel which peripheral elements surround said opening; and (c) a pair of perforated tear lines extending from an edge of said opening across one of said peripheral elements at opposite ends thereof to a corresponding outer edge of said bottom panel.
Claim 3
Dependent Claim
34 words
The blank of claim 1 further comprising a tab connected along a fold line to said one of said peripheral elements, said tab extending from said one of said peripheral elements into said opening.
Claim 4
Dependent Claim
22 words
The blank of claim 2, wherein said tab has edge portions which are substantially colinear with each of said perforated tear lines.
Claim 5
Dependent Claim
55 words
The blank of claim 1 further comprising a strip of adhesive material disposed on one of said top and bottom panels and restricted to outermost edge portions thereof, said adhesive material being adapted to bond said top and bottom panels together when said top and bottom panels are folded into face-to-face contact with each other.
Claim 6
Dependent Claim
158 words
A lid for covering a flanged tray, said lid being formed from a one-piece paperboard blank, and said lid comprising: (a) a top panel; (b) a bottom panel substantially identical in size and shape to said top panel and foldably connected to said top panel along one edge thereof, said bottom panel being disposed in face-to-face contact with said top panel; (c) an opening formed medially of said bottom panel, said opening having peripheral edges which combine with outer edges of said bottom panel to define peripheral elements on said bottom panel which surround said opening; and (d) adhesive means disposed on one of said top panel and said bottom panel, said adhesive means being operable to bond outermost edge portions of said top panel to outermost edge portions of said peripheral elements to secure said top and bottom panels in face-to-face contact, inner portions of said peripheral elements being free of bonded securement with said top panel.
Claim 7
Dependent Claim
158 words
A lid for covering a flanged tray, said lid being formed from a one-piece paperboard blank, and said lid comprising: (a) a top panel; (b) a bottom panel substantially identical in size and shape to said top panel and foldably connected to said top panel along one edge thereof, said bottom panel being disposed in face-to-face contact with said top panel; (c) an opening formed medially of said bottom panel, said opening having peripheral edges which combine with outer edges of said bottom panel to define peripheral elements on said bottom panel which surround said opening; and (d) adhesive means disposed on one of said top panel and said bottom panel, said adhesive means being operable to bond outermost edge portions of said top panel to outermost edge portions of said peripheral elements to secure said top and bottom panels in face-to-face contact, inner portions of said peripheral elements being free of bonded securement with said top panel.
Claim 8
Dependent Claim
52 words
The lid of claim 5, further comprising a pair of perforated tear lines extending from an edge of said opening across one of said peripheral elements to a corresponding outer edge of said bottom panel to provide means for removing said one of said peripheral elements from the remainder of the lid.
Claim 9
Dependent Claim
24 words
The lid of claim 6, further comprising a tab foldably connected to said one of said peripheral elements and extending therefrom into said opening.
Claim 10
Dependent Claim
133 words
A package comprising: (a) a tray having an open top and a peripheral flange surrounding said open top and extending outwardly therefrom; and (b) a lid comprising a top panel overlying said tray flange to close said open top of the tray, said lid further comprising a bottom panel foldably connected to an edge of said top panel and substantially equal thereto in size and shape, said bottom panel having a medial opening through which side wall portions of said tray extend, said opening being defined by peripheral elements surrounding said opening and underlying said tray flange, means for adhesively securing the outermost edge portions of said peripheral elements to outermost portions of said top panel to bond said top and bottom panels to each other without bonding said lid to said tray.
Claim 11
Dependent Claim
133 words
A package comprising: (a) a tray having an open top and a peripheral flange surrounding said open top and extending outwardly therefrom; and (b) a lid comprising a top panel overlying said tray flange to close said open top of the tray, said lid further comprising a bottom panel foldably connected to an edge of said top panel and substantially equal thereto in size and shape, said bottom panel having a medial opening through which side wall portions of said tray extend, said opening being defined by peripheral elements surrounding said opening and underlying said tray flange, means for adhesively securing the outermost edge portions of said peripheral elements to outermost portions of said top panel to bond said top and bottom panels to each other without bonding said lid to said tray.
Claim 12
Dependent Claim
62 words
The package of claim 8 further comprising a pair of perforated tear lines extending across one of said peripheral elements from an edge of said medial opening to the outer edge of said bottom panel at opposite end portions of said one of said peripheral elements to allow removal of said one of said peripheral elements from the remainder of said lid.
Claim 13
Dependent Claim
64 words
The package of claim 9 further comprising a tab foldably connected to an inner edge of said one of said peripheral elements, said tab being deflected into engagement with a side wall of the tray and providing gripping means whereby said one of said peripheral elements can be grasped and torn from the remainder of said lid via said pair of perforated tear lines.
Claim 14
Dependent Claim
82 words
The package of claim 9 wherein opposed portions of said peripheral elements and said top panel inwardly adjacent to said adhesively secured portions of said peripheral elements and said top panel combine to form opposite slide channels slidably containing said tray flange, said slide channels having corresponding ends terminating at said one of said peripheral elements whereby said lid can be slid off of said tray flange after removal of said one of said peripheral elements from the remainder of said lid.
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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) | 1987-08-07 | 1988-02-06 | 1988-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-07 | 1992-02-06 | 1992-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-07 | 1996-02-06 | 1996-08-07 | $7700.00 | Window Closed / Lapsed |