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US3885731A Expired / Lapsed US ⏱️ 0.0 years remaining

Package construction

Assignee: Individual
•
Filing: 1971-09-30
•
Granted: 1975-05-27
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Expires: 1991-09-30
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Abstract

Abstract A package for food or the like comprises an open top tray closed by a transparent membrane and an opaque panel overlying the membrane to protect the tray''s contents from exposure to light. The cover panel is scored longitudinally from end to end adjacent one side edge so as to form a hinged edge portion of the panel which may be swung upwardly relative to the membrane from one side of the tray to permit the contents at the one side of the tray to be inspected visually. The cover panel is slitted to form an inspection flap swingable about the score line, but from the opposite side of the tray. Either or both of the swingable portions of the panel may be manipulated without breaking the membrane and may be returned from raised position to lowered position.

Inventors

  • 👤 Charles D Mullinix

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 18:00
CPC Classifications
B; B65; B65D; B65D77/00; B65D77/10; B65D77/20; B65D77/2004; B65D77/2016; B65D2577/00; B65D2577/10; B65D2577/20; B65D2577/2041; B65D2577/205

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 167 words
A cover construction for a food package or the like comprising a transparent membrane; an opaque panel having opposite sides and ends overlying said membrane, said panel having between its sides a score line adjacent one side thereof and extending from one end to the opposite end to form a hinged edge portion between said score line and said one side of said panel, said hinged edge portion being swingable about said score line, said panel having a first slit between its opposite ends and extending along a line located between said score line and the opposite side of said panel and substantially parallel to but spaced from said score line, said panel also having slits at opposite ends of said first slit and extending to said score line to form a hinged flap swingable about said score line; and means adhering said panel to said membrane at selected zones to permit swinging movement of said hinged edge portion and of said flap relative to said membrane.
Claim 2
Dependent Claim 167 words
A cover construction for a food package or the like comprising a transparent membrane; an opaque panel having opposite sides and ends overlying said membrane, said panel having between its sides a score line adjacent one side thereof and extending from one end to the opposite end to form a hinged edge portion between said score line and said one side of said panel, said hinged edge portion being swingable about said score line, said panel having a first slit between its opposite ends and extending along a line located between said score line and the opposite side of said panel and substantially parallel to but spaced from said score line, said panel also having slits at opposite ends of said first slit and extending to said score line to form a hinged flap swingable about said score line; and means adhering said panel to said membrane at selected zones to permit swinging movement of said hinged edge portion and of said flap relative to said membrane.
Claim 3
Dependent Claim 31 words
The construction set forth in claim 1 including a tab carried by and projecting from said hinged edge portion along said side of said panel to facilitate swinging of said portion.
Claim 4
Dependent Claim 239 words
A package construction for food or the like comprising an open top tray having a bottom and upstanding opposite side and end walls provided with seats adjacent their upper ends; a transparent membrane seated on said seats and forming a closure for the open top of said tray; a cover panel having an area at least as great as that of the open top of said tray and overlying said membrane, said panel having a score line substantially parallel to but spaced from one wall of said tray to form a hinged edge portion of said panel swingable upwardly relative to said membrane aboUt said score line, whereby the contents of said tray adjacent said one wall thereof may be viewed through said membrane; adhesive means securing said panel to said membrane adjacent said score line between the latter and the opposite wall of said tray; adhesive means securing said panel to said membrane adjacent said opposite wall of said tray, the adhesion between said panel and said membrane adjacent said opposite wall being greater than the adhesion between said panel and said membrane adjacent said score line; and retaining bead means carried by said walls and overlying portions of said panel for retaining said panel in overlying relation to said membrane, said bead means being discontinuous at opposite ends of said hinged edge portion of said panel from said score line to said one wall of said tray.
Claim 5
Dependent Claim 239 words
A package construction for food or the like comprising an open top tray having a bottom and upstanding opposite side and end walls provided with seats adjacent their upper ends; a transparent membrane seated on said seats and forming a closure for the open top of said tray; a cover panel having an area at least as great as that of the open top of said tray and overlying said membrane, said panel having a score line substantially parallel to but spaced from one wall of said tray to form a hinged edge portion of said panel swingable upwardly relative to said membrane aboUt said score line, whereby the contents of said tray adjacent said one wall thereof may be viewed through said membrane; adhesive means securing said panel to said membrane adjacent said score line between the latter and the opposite wall of said tray; adhesive means securing said panel to said membrane adjacent said opposite wall of said tray, the adhesion between said panel and said membrane adjacent said opposite wall being greater than the adhesion between said panel and said membrane adjacent said score line; and retaining bead means carried by said walls and overlying portions of said panel for retaining said panel in overlying relation to said membrane, said bead means being discontinuous at opposite ends of said hinged edge portion of said panel from said score line to said one wall of said tray.
Claim 6
Dependent Claim 64 words
The construction set forth in claim 3 wherein a flap is formed by a pair of substantially parallel, spaced apart slits in said panel extending from said score line toward the wall opposite said one wall of said tray, the slits of said pair of slits terminating short of said opposite wall and being joined by a third slit spaced from said score line.
Claim 7
Dependent Claim 21 words
The construction set forth in claim 3 wherein said membrane is sealed to said seats about the perimeter of said top.

References Cited (Backward Citations)

US2880859A Cited
US3219253A Cited
US3233819A Cited
US3298505A Cited
US3301465A Cited
US3391852A Cited
US3464832A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-05-26 1978-11-25 1979-05-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-05-26 1982-11-25 1983-05-27 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-05-26 1986-11-25 1987-05-27 $7700.00 Window Closed / Lapsed

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