Envelopes – wrappers – and paperboard boxes – Paperboard box – Decoration or novelty feature
Patent
1994-06-16
1995-01-03
Elkins, Gary E.
Envelopes, wrappers, and paperboard boxes
Paperboard box
Decoration or novelty feature
229104, 229931, B65D 520
Patent
active
053779037
ABSTRACT:
A paperboard tray which resists warping is formed of a unitary blank, the blank having a polymer coating on its tray interior forming surface. The polymer coating is typically a heat resistant, non-stick, FDA approved polymer applied by extrusion coating. The upstanding sidewalls of the tray are joined to respective peripheral portions of the tray base through curved score lines on the tray interior surface. Curved cut lines on the exterior tray surface are each aligned with respective curved score lines on the tray interior surface, the cut lines extending 75 to 90 percent through the blank. The curved score lines and their complementary cut lines may be curved either convex outwardly or concavely inwardly with respect to the tray base.
REFERENCES:
patent: 416115 (1889-11-01), Mayall
patent: 2155791 (1939-04-01), Holmes
patent: 2527701 (1950-10-01), Buttery
patent: 2643813 (1953-06-01), Vines
patent: 2932439 (1960-04-01), Sparling
patent: 3062429 (1962-11-01), Liman et al.
patent: 3526566 (1970-09-01), McIwain, Jr. et al.
patent: 3927823 (1975-12-01), Persson
patent: 4020988 (1977-05-01), Kipp
patent: 4124160 (1978-11-01), Meyers et al.
patent: 4308985 (1982-01-01), Manizza et al.
patent: 4792085 (1988-12-01), Waring, III et al.
patent: 4951865 (1990-08-01), Eisman
patent: 5022582 (1991-06-01), Ritter
Gordon Robert L.
Naugle George H.
Stier David E.
Doyle Michael J.
Elkins Gary E.
International Paper Company
Juhasz Paul R.
LandOfFree
Reduced warp paperboard tray does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Reduced warp paperboard tray, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reduced warp paperboard tray will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2205863