File folder with a rigid spine

Details File folder with a rigid spine File folder with a rigid spine

1974-08-29

1976-01-20

Price, William

Envelopes, wrappers, and paperboard boxes

Paperboard box

Box material includes a coating or a nonpaperboard...

40359, 229 72, G65D 2700

Patent

active

039332942

ABSTRACT:
A one-piece file folder for use in vertical, lateral, rotary and similar files having an expandable pocket on the inside for containing papers and the like and a substantially rigid spine at a closed end, that is, folded edge, of the folder for indexing, or otherwise identifying said papers within the folder. The file folders herein are to be filed with their visible rigid spines vertically or horizontally, in the files.

REFERENCES:
patent: 1596311 (1926-08-01), Schaffert
patent: 1743305 (1930-01-01), Banks
patent: 1774215 (1930-08-01), Weinthrop
patent: 2756874 (1956-07-01), Erickson et al.
patent: 3620440 (1971-11-01), Humphrey

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