← Back to Patent Explorer
US3958748A Expired / Lapsed US ⏱️ 0.0 years remaining

Reclosable carton

Assignee: Procter and Gamble Co
•
Filing: 1975-11-11
•
Granted: 1976-05-25
•
Expires: 1995-11-11
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract Folded paperboard carton provided at one end with opposed pairs of major and minor flaps and an elongated tearout tab having a free edge extending along a major portion of the distal edge of the first down major flap and an opposed concomerated edge connection therewith to provide a wide opening; enabling removal of a wide rigid premium such as a children's book or a record as well as enabling well controlled pouring of a product such as a granulated detergent, while leaving spaced apart minor portions of said distal edge on each side of said major portion adhered to the underlying minor flap to define a U-shaped flange around the opening to allow adequate sealing and to keep the carton generally rigid and resistant to bulging after opening; and wherein the second down major flap is adhered to the first down major flap proximally of said tearout tab substantially only adjacent the concamerated edge thereof; the distal edge of the second down major flap defining a reclosure tab for insertion into a mating slit provided in the first down major flap proximally of said tear out tab and generally parallel said distal edge to enable good reclosure after opening. The concamerated edge may be curvilinearly arched or may be defined by concatenated straight line segments and the tear out tab may be either sealed to the last down major flap for automatic removal from the opening upon lifting of the last down major flap by the consumer or may be release coated to preclude such adherence for manual removal after the last down major flap has been lifted.

Inventors

  • 👤 William Andrew Smith
  • 👤 Richard Eugene Moyer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 18:36
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/42; B65D5/54; B65D5/5405; B65D5/541; B65D5/70; B65D5/701

Claims Analysis

Total Claims: 15
Claim 1
Independent Claim 133 words
In a folded board carton provided at one end with opposed pairs of major and minor flaps, the improvement comprising an elongated concamerated tear out tab extending inwardly of a major extent of the distal edge of the first down major flap leaving a minor portion of said distal edge on each side of said major portion to allow adequate sealing and to keep the carton generally rigid and bulge resistant after opening and wherein the second down major flap is adhered to said first down major flap proximally of said tear out tab substantially only adjacent the concamerated edge thereof; the distal edge of said second down major flap defining a reclosure tab for insertion into a mating slit provided in said first down major flap to enable reclosure thereof after opening.
Claim 2
Dependent Claim 133 words
In a folded board carton provided at one end with opposed pairs of major and minor flaps, the improvement comprising an elongated concamerated tear out tab extending inwardly of a major extent of the distal edge of the first down major flap leaving a minor portion of said distal edge on each side of said major portion to allow adequate sealing and to keep the carton generally rigid and bulge resistant after opening and wherein the second down major flap is adhered to said first down major flap proximally of said tear out tab substantially only adjacent the concamerated edge thereof; the distal edge of said second down major flap defining a reclosure tab for insertion into a mating slit provided in said first down major flap to enable reclosure thereof after opening.
Claim 3
Dependent Claim 46 words
Folded carton defined in claim 1 wherein said tear out tab is defined by concatenated line of perforations extending between locations spaced apart along said distal edge of said first down major flap and spaced apart from the side edges of said first down major flap.
Claim 4
Dependent Claim 15 words
Folded carton defined in claim 2 wherein side line of perforations is generally continuously curvilinear.
Claim 5
Dependent Claim 18 words
Folded carton defined in claim 2 wherein said line of perforations comprises a generally elongated medial continuous cut.
Claim 6
Dependent Claim 20 words
Folded carton defined in claim 2 wherein said line of perforations comprises a series of concatenated elongated straight line cuts.
Claim 7
Dependent Claim 56 words
Folded carton defined in claim 2 wherein said tear out tab is coated with a release coating to prevent adherence thereof to said second down major flap and provided with a finger notch extending generally medially inwardly from said distal edge thereof to enable manual removal thereof following consumer lifting of said second down major flap.
Claim 8
Dependent Claim 37 words
Board carton defined in claim 1 wherein said reclosure tab is defined by a pair of spaced apart notches having generally arcuate side edges provided extending inwardly of the distal edge of said second down major flap.
Claim 9
Dependent Claim 46 words
Folded carton defined in claim 1 wherein said first down major flap is provided with a patterned coating of hold out lacquer enabling adhesion thereof with said second down major flap primarily along a fornix region extending adjacent the concamerated edge of said tear out flap.
Claim 10
Dependent Claim 31 words
Folded carton defined in claim 1 wherein said minor flaps are each provided with generally notched edges in general alignment, when erected, with the concamerated edge of said tear out tab.
Claim 11
Dependent Claim 24 words
Folded carton defined in claim 1 wherein said major flaps are adhered together primarily along a fornix region extending adjacent said tear out tab.
Claim 12
Dependent Claim 48 words
Folded carton defined in claim 9 wherein said fornix region is of generally uniform width and is defined along one edge by said line of perforation and along the other edge by a concamerated generally continuous top liner cut spaced generally uniformly apart from said line of perforations.
Claim 13
Dependent Claim 27 words
Folded carton defined in claim 10 further comprising a series of generally parallel supplemental top liner cuts extending generally longitudinally entirely of and within said fornix region.
Claim 14
Dependent Claim 35 words
Folded carton defined in claim 5 further comprising a pair of secondary adhesive spots adhering the distal corner portions of said second down major flap to the subjacent portions of said first down major flap.
Claim 15
Dependent Claim 37 words
Folded carton defined in claim 2 wherein said tear out tab is adhered to said second down major flap to be removed from said first down major flap during consumer lifting of said second down major flap.

References Cited (Backward Citations)

DE10353C Cited
US1746006A Cited
US1980851A Cited
US2789746A Cited
US3185578A Cited
US3301391A Cited
US3269635A Cited
US3361327A Cited
US3491937A Cited
US3595466A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1979-05-25 1979-11-24 1980-05-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1983-05-25 1983-11-24 1984-05-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1987-05-25 1987-11-24 1988-05-25 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag