Patent · US Active

Protected prong file fastener

US8414211B1 · kind B1 · utility

1Cited by

18References

5Claims

0Family size

Assignee

The Smead Manufacturing Company · US

Inventors

Harold Peter Lindelof · Eden Prairie, US
Marvin J. Halfen · Hastings, US
David J. Gilbertson · Hastings, US
Robert Scudder · Rancho Cucamonga, US
Michael C. Goodson · Belton, US
Michael Hacker · Sinsheim, DE

Key dates

Filing date	Nov 10, 2011
Grant date	Apr 9, 2013
Priority date	—
Expiry date	Nov 10, 2031

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB42P2241/20
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

A prong style file fastener, and method of manufacturer, is disclosed which has a protective element to prevent damage to paper documents and personal injury. In one embodiment, the prongs of the fastener is covered with a heat shrinkable sheath. In another, the prongs are overcoated with a powder coating which is melted thereon.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.