USD179497S - X d doorknob - Google Patents
X d doorknob Download PDFInfo
- Publication number
- USD179497S USD179497S US D179497 S USD179497 S US D179497S
- Authority
- US
- United States
- Prior art keywords
- doorknob
- page
- view
- flint
- mich
- Prior art date
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- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
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Description
Des. 179,497
Patented Jan. 1, 1957 "ice States Patent 1 DOORKNOB Hayes 0. Scott, Flint, Mich, assignor to The Engineered Products Company, Flint, Mich a corporation of Michigan Application November 3, 1954, Serial No. 32,938
Term of patent 14 years (Cl. D50-3) Figure 1 is a perspective view of a doorknob embodying my new design.
Figure 2 is a side elevation of the doorknob.
Figure 3 is a sectional view of the doorknob.
Figure 4 is a top plan view ofthe doorknob.
[ claim:
The ornamental design for a doorknob, substantially as shown.
References Cited in the file of this patent UNITED STATES PATENTS D. 139,149 Dey Oct. 17, 1944 OTHER REFERENCES Modern Plastics Encyclopedia, 1949 page 829, second row from right, third knob down.
Belknap Hardware Catalog 1950, bottom of page 930.
Russwin Hardware Catalog-No. 16, recd Dec. 13. 1937, page 226, items 20; 7132; 06%.
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