End cap for paper tube

Details End cap for paper tube End cap for paper tube

2007-11-20

2007-11-20

Elkins, Gary E (Department: 3782)

Envelopes, wrappers, and paperboard boxes

Paperboard box

With closure for an access opening

C229S005500, C229S125270

Reexamination Certificate

active

10773393

ABSTRACT:
The present invention provides an end cap in combination with a paper tube. The paper tube has one or more inwardly extending flaps at an open end. The end cap has a bottom wall and a sidewall that extends from a peripheral edge of the bottom wall. The end cap receives and engages the inwardly extending flaps when the end cap is disposed in the open end of the paper tube.

REFERENCES:
patent: 2049379 (1936-07-01), Hosking
patent: 2346685 (1944-04-01), Hothersall
patent: 2444722 (1948-07-01), Bogoslowsky
patent: 2974825 (1961-03-01), Ross
patent: 3106328 (1963-10-01), Locke
patent: 3339605 (1967-09-01), Ignell
patent: 3941300 (1976-03-01), Troth
patent: 4042169 (1977-08-01), Burgdorf
patent: 4438864 (1984-03-01), Helms
Western Container Corporation, Undated screen capture image from web page of “http://www.thomasregister.com/olc/70281001/snaplock.htm” showing “Snap Loc” pinched-end mailing/storage tubes.

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