US3964671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carton for a package convertible to a baking pan
Assignee: Riverwood Natural Resources Corp
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Filing: 1975-05-12
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Granted: 1976-06-22
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Expires: 1995-05-12
Abstract
Abstract A carton and a package especially adapted for use in marketing ingredients for a bakery product, the carton being formed from a single blank to provide, when opened up, a tubular container with end closure flaps which are adapted to be closed and sealed at one end to enable filling through the opposite end, after which the flaps at the filling end are closed and sealed, and the top wall forming panel being provided with spaced, parallel, cut scores forming tear lines so that outermost end flaps may be pulled loose and a substantial portion of the top wall panel may be separated on the tear lines and discarded with the end flaps, resulting in conversion of the container to an open top traY which may be used as a baking pan or baking tray for processing the ingredients in a conventional baking oven.
Inventors
- 👤 Thomas C. Steel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:41
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/42; B65D5/54; B65D5/5405
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
284 words
A carton for packaging a product, said carton being initially formed as a tube comprising top, bottom and connecting side wall panels, each with oppositely disposed end edges, end closure panels hingedly connected to said top, bottom and side wall panel end edges, which end closure panels are foldable to closed position so as to form an end wall structure, the end closure panels which are connected to said top side wall panel being secured in overlying relation to end closure panels which are connected to adjoining side wall panels and being secured to the underlying panels by means which enables at least a middle portion thereof to be readily torn loose without destroying the end wall structure, and said top wall forming panel having laterally spaced tear line formations which are disposed in spaced, parallel relation to the side edges of the top wall forming panel and which extend between the associated end wall panels, whereby the outermost end wall panels and a major portion of the top wall forming panel may be torn loose and discarded so as to convert the carton to an open top tray structure having narrow flange formations hinged to the top edges of the side walls which serve to reinforce the top edges of the side wall panels, and said end wall forming closure panels which are hingedly connected to said bottom wall panel having tuck flaps on the margin opposite their hinged connection with said bottom wall panel which serve as top edge flanges and reinforce the top edges of the end wall panels when said major portion of said top wall forming panel is torn loose and pulled free of said top wall forming panel.
Claim 2
Dependent Claim
284 words
A carton for packaging a product, said carton being initially formed as a tube comprising top, bottom and connecting side wall panels, each with oppositely disposed end edges, end closure panels hingedly connected to said top, bottom and side wall panel end edges, which end closure panels are foldable to closed position so as to form an end wall structure, the end closure panels which are connected to said top side wall panel being secured in overlying relation to end closure panels which are connected to adjoining side wall panels and being secured to the underlying panels by means which enables at least a middle portion thereof to be readily torn loose without destroying the end wall structure, and said top wall forming panel having laterally spaced tear line formations which are disposed in spaced, parallel relation to the side edges of the top wall forming panel and which extend between the associated end wall panels, whereby the outermost end wall panels and a major portion of the top wall forming panel may be torn loose and discarded so as to convert the carton to an open top tray structure having narrow flange formations hinged to the top edges of the side walls which serve to reinforce the top edges of the side wall panels, and said end wall forming closure panels which are hingedly connected to said bottom wall panel having tuck flaps on the margin opposite their hinged connection with said bottom wall panel which serve as top edge flanges and reinforce the top edges of the end wall panels when said major portion of said top wall forming panel is torn loose and pulled free of said top wall forming panel.
Claim 3
Dependent Claim
243 words
A blank for forming a carton comprising an elongate sheet of foldable carton forming material which is divided by laterally spaced, longitudinal score lines and longitudinally spaced, parallel, transverse score lines into a series of connected top, bottom and side wall forming panels which are adapted to be folded and connected to form a tube, and end closure panels which extend outwardly along opposite side margins of the blank and are separated from each other by slots which are cut in the blank so as to be aligned with said transverse score lines and which extend to the longitudinal score lines, said end closure panels being adapted to be folded into tube end closing relation and said top side wall forming panel having tear line formations which are spaced from the transverse score lines defining said top side wall panel and which extend between the end closure panels on said top side wall panel in diverging relation at the ends thereof to the inner ends of said panel separating slots thereby enabling said end wall forming panels which extend from said top wall forming panel and the major portion of said top wall forming panel to be readily torn out when the blank is formed into a set up and closed carton structure so as to open the carton and convert the same to an open top tray with narrow flange formations extending along the top edges of the side wall forming panels.
Claim 4
Dependent Claim
243 words
A blank for forming a carton comprising an elongate sheet of foldable carton forming material which is divided by laterally spaced, longitudinal score lines and longitudinally spaced, parallel, transverse score lines into a series of connected top, bottom and side wall forming panels which are adapted to be folded and connected to form a tube, and end closure panels which extend outwardly along opposite side margins of the blank and are separated from each other by slots which are cut in the blank so as to be aligned with said transverse score lines and which extend to the longitudinal score lines, said end closure panels being adapted to be folded into tube end closing relation and said top side wall forming panel having tear line formations which are spaced from the transverse score lines defining said top side wall panel and which extend between the end closure panels on said top side wall panel in diverging relation at the ends thereof to the inner ends of said panel separating slots thereby enabling said end wall forming panels which extend from said top wall forming panel and the major portion of said top wall forming panel to be readily torn out when the blank is formed into a set up and closed carton structure so as to open the carton and convert the same to an open top tray with narrow flange formations extending along the top edges of the side wall forming 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) | 1979-06-22 | 1979-12-22 | 1980-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-22 | 1983-12-22 | 1984-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-22 | 1987-12-22 | 1988-06-22 | $7700.00 | Window Closed / Lapsed |