Vertical plumb tool
Description
FIG. 1 is a top, front, and left side perspective view of a vertical plumb tool showing my new design;
FIG. 2 is rear elevational view;
FIG. 3 is a right side elevational view;
FIG. 4 is a top plan view; and
FIG. 5 is a bottom plan view thereof.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
D32156 | January 1900 | Johnson |
D171317 | January 1954 | Von Dukhe |
1229356 | June 1917 | Watkins |
1308699 | July 1919 | Cusick |
1707593 | April 1929 | Arbuckle |
2624953 | January 1953 | Newcomb |
2635350 | April 1953 | Bettega |
3545091 | December 1970 | Sebastiani |
4202108 | May 13, 1980 | Adams, Jr. et al. |
4443954 | April 24, 1984 | Clark |
4829676 | May 16, 1989 | Waldron |
1141672 | September 1957 | FRX |
555055 | October 1957 | FRX |
Patent History
Patent number: D323997
Type: Grant
Filed: Oct 3, 1988
Date of Patent: Feb 18, 1992
Assignee: Thomas K. Stevens (El Cerrito, CA)
Inventors: James C. Masters (Walnut Creek, CA), Thomas K. Stevens (El Cerrito, CA)
Primary Examiner: Bruce W. Dunkins
Assistant Examiner: Antoine D. Davis
Attorney: Harris Zimmerman
Application Number: 7/251,872
Type: Grant
Filed: Oct 3, 1988
Date of Patent: Feb 18, 1992
Assignee: Thomas K. Stevens (El Cerrito, CA)
Inventors: James C. Masters (Walnut Creek, CA), Thomas K. Stevens (El Cerrito, CA)
Primary Examiner: Bruce W. Dunkins
Assistant Examiner: Antoine D. Davis
Attorney: Harris Zimmerman
Application Number: 7/251,872
Classifications
Current U.S. Class:
Spirit Level (D10/69)