Indirect ophthalmoscopy lens retaining ring

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

FIG. 1 is a side elevational view of an indirect ophthalmoscopy lens retaining ring, showing our new design;

FIG. 2 is a cross-sectional view taken along line 2—2 of FIG. 1;

FIG. 3 is an end elevational view taken from the right of FIG. 1; and,

FIG. 4 is an end elevational view taken from the left of FIG. 1.

Claims

We claim the ornamental design for an indirect ophthalmoscopy lens retaining ring, as shown and described.

Referenced Cited
U.S. Patent Documents
D357319 April 11, 1995 Volk
4913545 April 3, 1990 Volk
4934809 June 19, 1990 Volk
5255025 October 19, 1993 Volk
5589896 December 31, 1996 Mainster et al.
5784147 July 21, 1998 Volk
Patent History
Patent number: D438621
Type: Grant
Filed: Nov 4, 1998
Date of Patent: Mar 6, 2001
Assignee: Volk Optical, Inc. (Mentor, OH)
Inventors: Richard M. Mueller (Mentor, OH), Donald A. Volk (Mentor, OH)
Primary Examiner: Stella Reid
Attorney, Agent or Law Firms: Venable, Robert Kinberg
Application Number: 29/096,096
Classifications
Current U.S. Class: Ophthalmic (44) (D24/172)
International Classification: 2401;