Cup for an acoustical coupler

Skip to: Description  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a bottom perspective view of a cup for an acoustical coupler showing my new design;

FIG. 2 is a top perspective view thereof;

FIG. 3 is a bottom plan view thereof; and

FIG. 4 is a top plan view thereof.

Referenced Cited
U.S. Patent Documents
2209327 July 1940 D'Humy et al.
2342087 February 1944 Pridham
2478783 August 1949 Scher
3012108 December 1961 Bell
3725584 March 1973 Kilmer et al.
3733437 May 1973 Keith
4071717 January 31, 1978 Fidi et al.
4149033 April 10, 1979 Costello et al.
4158106 June 12, 1979 Mason
4246444 January 20, 1981 Mason
Foreign Patent Documents
2753387 May 1979 DEX
Patent History
Patent number: D281688
Type: Grant
Filed: Jan 10, 1983
Date of Patent: Dec 10, 1985
Assignee: CK Marketing, Inc. (Boulder, CO)
Inventor: Edward J. Owens, Jr. (Boulder, CO)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Horace B. Fay
Attorney: Donald W. Margolis
Application Number: 6/456,856
Classifications
Current U.S. Class: D14/57; D14/59