Title: Container lid with foldback drink opening

Abstract: A lid for drink cups includes a drinking flap of limited circumferential extent that may be selectively pivotally opened and closed. Such drinking flap may initially be defined by frangible lateral edges in the lid and may be held in its open position by the pull tab on the flap being inserted in a slit for a straw orifice.

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Inventors: Elfelt, Walter (Cleveland, OH, US)
Scruggs, James H. (Sandstone, MN, US)

Application Number: 569831
Filing Date: 1975-04-21
Publication_date: 1976-11-30
Assignee: Elfelt; Anna J. (Cleveland, OH)
Primary Class(es): 220/712 220/269, 229/123.2, 229/906.1
Other Classes:
US Patent Ref:

2276577	Mar, 1942	Hahn	229/7.
2286508	Jun, 1942	Rheinfels	220/306.
2939617	Jun, 1960	Hassler	222/556.
3048317	Aug, 1962	Cochrane et al.	220/306.
3101870	Aug, 1963	Betner	220/269.
3302858	Feb, 1967	Miller	229/7.
3355060	Nov, 1967	Reynolds et al.	220/270.
3387765	Jun, 1968	Davis	220/306.
3421654	Jan, 1969	Hexel	220/306.
3473685	Oct, 1969	Karlan	215/305.
3738526	Jun, 1973	Zundel et al.	220/269.
3822030	Jul, 1974	Tanzer	229/43.
3847300	Nov, 1974	Waters	222/541.

Other Refs:
Primary Examiner: Lowrance, George E.
Assistant Examiner: Shoap, Allan N.
Attorney: Donnelly, Maky, Renner & Otto