Spring screw

- Fibox Oy AB
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Description

FIG. 1 is a perspective front and top view showing our new design;

FIG. 2 is a left side view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

Referenced Cited
U.S. Patent Documents
D255772 July 8, 1980 Johnson
D283591 April 29, 1986 Swanstrom
D357176 April 11, 1995 Ernest et al.
3437119 April 1969 Dey
4720223 January 19, 1988 Neights
Other references
  • Southco Fasteners; p. 4; No. 53--Spring ejection screw fasteners, .COPYRGT.1967.
Patent History
Patent number: D391844
Type: Grant
Filed: May 31, 1996
Date of Patent: Mar 10, 1998
Assignee: Fibox Oy AB (Jorvas)
Inventors: Matti Ropponen (Espoo), Heikki Merilainen (Helsinki)
Primary Examiner: B. J. Bullock
Law Firm: Finnegan, Henderson, Farabow, Garrett & Dunner
Application Number: 0/55,168
Classifications
Current U.S. Class: D/8382; D8/387
International Classification: 0808;