Spiral binder

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Description

FIG. 1 is a perspective view of a spiral binder showing my new design;

FIG. 2 is a top view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a back elevation view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a side elevation view thereof; and,

FIG. 7 is a side elevational view of the other side thereof.

Referenced Cited
U.S. Patent Documents
3122761 March 1964 Bouvier
3367649 February 1968 Thomas et al.
3459242 August 1969 Schmidt
3467150 September 1969 Ostermeier
3486537 December 1969 Sickinger
3592242 July 1971 Sickinger
3793660 February 1974 Sims et al.
3818954 June 1974 Pfaffle
3826290 July 1974 Pfaffle
3889309 July 1975 Adams et al.
3924664 December 1975 Pfaffle
3972109 August 3, 1976 Sickinger
4129156 December 12, 1978 Pfaffle
4129913 December 19, 1978 Pfaffle
4143686 March 13, 1979 Sickinger et al.
4185668 January 29, 1980 Harbert
4208750 June 24, 1980 Pfaffle
4249278 February 10, 1981 Pfaffle
4378822 April 5, 1983 Morris
4610590 September 9, 1986 Pigna
Foreign Patent Documents
717238 September 1965 CAX
Patent History
Patent number: D376607
Type: Grant
Filed: Oct 6, 1995
Date of Patent: Dec 17, 1996
Assignee: Unicoil, Inc. (Norcross, GA)
Inventors: John H. Mar (Seattle, WA), Kevin L. Engelbert (Mukilteo, WA), Mark E. Hastings (Mukilteo, WA), Randy C. Peterson (Mukilteo, WA)
Primary Examiner: Antoine Duval Davis
Law Firm: Christensen O'Connor Johnson & Kindness PLLC
Application Number: 0/45,052
Classifications
Current U.S. Class: Cutting (6) (D15/127)