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US3237840A Expired / Lapsed US ⏱️ 0.0 years remaining

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Assignee: Mead Corp
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Filing: 1963-10-09
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Granted: 1966-03-01
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Expires: 1983-10-09
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Abstract

No abstract record available.

Inventors

  • 👤 Clifford H Keith

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 19:09
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/02; B65D5/0218

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 263 words
A PLURALITY OF EDGE-JOINED PANELS DEFINING A CIRCUMFERENTIALLY CONTINUOUS INNER WALL OF A CARTON, A LIKE NUMBER OF EDGE-JOINED PANELS DEFINING THE LOWER PORTION OF THE OUTER WALL OF SAID CARTON, A MATING SET OF EDGE-JOINED PANELS DEFINING THE UPPER PORTION OF THE OUTER WALL OF SAID CARTON, AND SETS OF VERTICALLY ELONGATED CLOSURE FORMING PANELS JOINING THE TOP AND BOTTOM EDGES OF SAID INNER WALL PANELS RESPECTIVELY TO THE TOP AND BOTTOM EDGES OF THE PANELS DEFINING THE UPPER AND THE LOWER OUTER WALL PORTIONS, EACH OF SAID CLOSURE FORMING PANELS HAVING A HORIZONTAL MEDIAL FOLD CREASE FORMED THEREIN AND BEING PROVIDED WITH AT LEAST ONE VERTICALLY ELONGATED WEDGE-SHAPED CUT-OUT AREA IN AND ALONG ONE SIDE THEREOF WITH THE APEX OF SAID AREA BEING CLOSELY ADJACENT THE MEDIAL FOLD CREASE, SAID AREA BEING CLOSELY ADJACENT THE MEDIAL FOLD CREASE, SAID CLOSURE FORMING PANELS HAVING WEGE-SHAPED CREASDEFINED WEBS CONNECTING LATERAL EDGES OF ADJACENT PANELS BEYOND THE BASE OF SAID CUT-OUT AREAS AND HAVING FOLD CREASE EXTENDING LONGITUDINALLY AND FROM AND THE APICES THEREOF TO ENHANCE THE FLEXIBILITY THEREOF, SAID WEB SEALING THE MARGINS OF THE FLAT SPACES BETWEEN INTERLEAVED PANELS AGAINST LEAKAGE, WHEREBY SAID LATTER PANELS WILL FOLD INWARDLY WITH EACH RECEIVING THE MEDIALLY FOLDED EDGE OF AN ADJACENT PANEL WITHIN THE POCKET DEFINED BY THE BASE OF SAID AREA TO PROVIDE A SEQUENTIAL INTERLEAVING OF SAID SETS OF CLOSURE FORMING PANELS TO DEFINE TOP AND BOTTOM CLOSURES FOR SAID CARTON AS SAID UPPER AND LOWER OUTER WALL PORTIONS ARE TELESCOPED AXIALLY OVER HE UPPER AND LOWER ENDS OF SAID CARTON INNER WALL.
Claim 2
Dependent Claim 263 words
A PLURALITY OF EDGE-JOINED PANELS DEFINING A CIRCUMFERENTIALLY CONTINUOUS INNER WALL OF A CARTON, A LIKE NUMBER OF EDGE-JOINED PANELS DEFINING THE LOWER PORTION OF THE OUTER WALL OF SAID CARTON, A MATING SET OF EDGE-JOINED PANELS DEFINING THE UPPER PORTION OF THE OUTER WALL OF SAID CARTON, AND SETS OF VERTICALLY ELONGATED CLOSURE FORMING PANELS JOINING THE TOP AND BOTTOM EDGES OF SAID INNER WALL PANELS RESPECTIVELY TO THE TOP AND BOTTOM EDGES OF THE PANELS DEFINING THE UPPER AND THE LOWER OUTER WALL PORTIONS, EACH OF SAID CLOSURE FORMING PANELS HAVING A HORIZONTAL MEDIAL FOLD CREASE FORMED THEREIN AND BEING PROVIDED WITH AT LEAST ONE VERTICALLY ELONGATED WEDGE-SHAPED CUT-OUT AREA IN AND ALONG ONE SIDE THEREOF WITH THE APEX OF SAID AREA BEING CLOSELY ADJACENT THE MEDIAL FOLD CREASE, SAID AREA BEING CLOSELY ADJACENT THE MEDIAL FOLD CREASE, SAID CLOSURE FORMING PANELS HAVING WEGE-SHAPED CREASDEFINED WEBS CONNECTING LATERAL EDGES OF ADJACENT PANELS BEYOND THE BASE OF SAID CUT-OUT AREAS AND HAVING FOLD CREASE EXTENDING LONGITUDINALLY AND FROM AND THE APICES THEREOF TO ENHANCE THE FLEXIBILITY THEREOF, SAID WEB SEALING THE MARGINS OF THE FLAT SPACES BETWEEN INTERLEAVED PANELS AGAINST LEAKAGE, WHEREBY SAID LATTER PANELS WILL FOLD INWARDLY WITH EACH RECEIVING THE MEDIALLY FOLDED EDGE OF AN ADJACENT PANEL WITHIN THE POCKET DEFINED BY THE BASE OF SAID AREA TO PROVIDE A SEQUENTIAL INTERLEAVING OF SAID SETS OF CLOSURE FORMING PANELS TO DEFINE TOP AND BOTTOM CLOSURES FOR SAID CARTON AS SAID UPPER AND LOWER OUTER WALL PORTIONS ARE TELESCOPED AXIALLY OVER HE UPPER AND LOWER ENDS OF SAID CARTON INNER WALL.

References Cited (Backward Citations)

US2091291A Cited
US2013691A Cited
US2577588A Cited
US3107042A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-02-28 1969-08-30 1970-03-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-02-28 1973-08-30 1974-03-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-02-28 1977-08-30 1978-03-01 $7700.00 Window Closed / Lapsed

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