Plowshare with a replaceable member

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

FIG. 1 is a side perspective view of a plowshare with a replaceable member 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
32175 January 1900 Ream
943859 December 1909 Bristow
Other references
  • John Deere, Moldboard plows, 10-11-77, p. 59, "Moldboard-2nd from top right". Implement and Tractor, 4/7/1980, p. 30, Star Manufacturing Company, The Plow Shared.
Patent History
Patent number: D274523
Type: Grant
Filed: Mar 10, 1981
Date of Patent: Jul 3, 1984
Assignee: Kverneland A/S (Kvernaland)
Inventor: Olav Nja (Kvernaland)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Suzanne N. Gitlin
Law Firm: Schwartz, Jeffery, Schwaab, Mack, Blumenthal & Koch
Application Number: 6/242,241