Spring screw
Ropponen , et al. March 10, 1
U.S. patent number D391,844 [Application Number D/055,168] was granted by the patent office on 1998-03-10 for spring screw. This patent grant is currently assigned to Fibox Oy AB. Invention is credited to Heikki Merilainen, Matti Ropponen.
| United States Patent | D391,844 |
| Ropponen , et al. | March 10, 1998 |
Spring screw
Claims
The ornamental design for a spring screw, as shown and described.
| Inventors: | Ropponen; Matti (Espoo, FI), Merilainen; Heikki (Helsinki, FI) |
|---|---|
| Assignee: | Fibox Oy AB (Jorvas,
FI) |
| Appl. No.: | D/055,168 |
| Filed: | May 31, 1996 |
Foreign Application Priority Data
| Dec 1, 1995 [KR] | 95-23362 | |||
| Current U.S. Class: | D8/382; D8/387 |
| Current International Class: | 0808 |
| Field of Search: | ;D8/387,499,382 ;411/347,349,378,383,411,418,552 |
References Cited [Referenced By]
U.S. Patent Documents
| D255772 | July 1980 | Johnson |
| D283591 | April 1986 | Swanstrom |
| D357176 | April 1995 | Ernest et al. |
| 3437119 | April 1969 | Dey |
| 4720223 | January 1988 | Neights |
Other References
|
Southco Fasteners; p. 4; No. 53--Spring ejection screw fasteners, .COPYRGT.1967.. |
Primary Examiner: Bullock; B. J.
Attorney, Agent or Firm: Finnegan, Henderson, Farabow, Garrett & Dunner
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.
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