FIG. 1 is an elevational view of one side of the design of this invention on a greenhouse, the other side being identical;

FIG. 2 is a top view of the design of FIG. 1; and

FIG. 3 is a bottom view of the design of FIG. 1.

Referenced Cited
U.S. Patent Documents
3224150 December 1965 Burtoff et al.
3550601 December 1970 Peters
3668287 June 1972 Mackie
3859673 January 1975 Meyerhoff, Sr.
3869827 March 1975 Anderson et al.
3893270 September 1975 Schupack et al.
Patent History
Patent number: D252587
Type: Grant
Filed: Oct 17, 1977
Date of Patent: Aug 7, 1979
Assignee: Plant Site, Inc.
Inventor: William B. Darwin (Colorado Springs, CO)
Primary Examiner: A. Hugo Word
Law Firm: Pravel, Wilson & Gambrell
Application Number: 5/843,131