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Class Information
Number: 220/780
Name: Receptacles > Closures > Removable closure situated by resilient distortion and retained by preformed configuration (e.g., detent)
Description: Subject matter wherein the closure or closure support is provided with structure designed to induce a deformation of the closure or the closure support during their mating cooperation, the return of the deformed portion to its normal position serves to cause an interlock between the closure and the closure support, thus preventing their casual separation.










Sub-classes under this class:

Class Number Class Name Patents
220/792 Closure flange has noninterlocking contact internal to passage mouth 118
220/793 Closure includes integral lifting tab 97
220/783 Closure interlocked by upward opening trough at passage mouth 70
220/782 Closure reinforced 75
220/781 Having structure to stack or nest when not in use 87
220/789 Interlock internal to passage mouth (e.g., stopper type closure) 167
220/794 Interlock surface on closure is bent or impressed 23
220/784 Noncontinuous interlock along perimeter of closure, closure support juncture 146
220/795 With gasket or packing 72


Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
7165306 Overcap having improved fit Jan. 23, 2007
7156253 Single-piece paper cup sip adaptor Jan. 2, 2007
7118003 Tamper resistant container with tamper-evident feature and method of forming the same Oct. 10, 2006
7097066 Plate container with detachable cover Aug. 29, 2006
7097063 Plate container with detachable cover Aug. 29, 2006
7090089 Container and sealing cover Aug. 15, 2006
7059492 Moisture-proof resealable, non-cylindrical container for consumer packages Jun. 13, 2006
7028858 Quick-twist pop-off closure Apr. 18, 2006
6981607 Container cap assembly Jan. 3, 2006
6896144 Filtration and separation apparatus and method of assembly May. 24, 2005
6851569 Reusable lid and container Feb. 8, 2005
6845878 Containers Jan. 25, 2005
6827232 Resin case providing compatibility between air permeability and water proofing property, and mold for producing such case Dec. 7, 2004
6786351 Domed food container Sep. 7, 2004
6733852 Disposable serving plate with sidewall-engaged sealing cover May. 11, 2004
6722520 Container including a slider and a reclosable fastener Apr. 20, 2004
6719166 Hermetic closure system between a cover and a package Apr. 13, 2004
6685049 Thin wall closure for use with a container Feb. 3, 2004
6612456 Drink-through cup lid having selectively inwardly and outwardly rotatable hinged portion Sep. 2, 2003
6604647 Molded container and lid having strategically positioned drainage opening Aug. 12, 2003
6604646 Portable food container cover with detachable utensil Aug. 12, 2003
6604645 Container lid and implement Aug. 12, 2003
6540268 Closure device for a container and furthermore a container fitted with the closure device Apr. 1, 2003
6523713 Stackable hinged container lid having detents Feb. 25, 2003
6478181 Shrinkable tray with attachable lids Nov. 12, 2002
6460716 Container with food seals Oct. 8, 2002
6450358 Hygienic beverage can attachment Sep. 17, 2002
6401967 Frozen dessert container Jun. 11, 2002
6371324 Portable food container cover with detachable utensil Apr. 16, 2002
6338421 Crack-resistant container lid having opening Jan. 15, 2002
6279774 Cover locking mechanism Aug. 28, 2001
6267078 Portable cat litter case and travel kit Jul. 31, 2001
6260729 Article for food sealing and storage Jul. 17, 2001
6237790 Cap having de-ovalization bead on skirt May. 29, 2001
6220471 Resealing overcap for a cylindrical container Apr. 24, 2001
6196404 Triple seal container with protrusion Mar. 6, 2001
6164484 Insulated snap fit container lid Dec. 26, 2000
6158607 Storage container with attachable lid Dec. 12, 2000
6119890 Metallic can and method of manufacture of same, and can cover with integral scraper Sep. 19, 2000
6116422 Frozen dessert container Sep. 12, 2000
6102209 Cosmetic packaging Aug. 15, 2000
6099299 Support attachment and cigarette lighter safety device Aug. 8, 2000
6073797 Sanitary lid for a beverage can that forms a seal with an aperture of the can Jun. 13, 2000
6063340 Reagent container for automated analyzer May. 16, 2000
6047851 Injection blow molded container and related method Apr. 11, 2000
6032825 Lid for holding a frozen confection over a cup Mar. 7, 2000
6024246 Structure of squeeze lid Feb. 15, 2000
6021917 Pail and plastic lid comprising non-linear, flexible ribs Feb. 8, 2000
6015061 Dual function overcap Jan. 18, 2000
5988426 Leakproof vented beverage lid Nov. 23, 1999

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