Roof insulation washer
Dewey April 20, 1
U.S. patent number D263,927 [Application Number 06/092,159] was granted by the patent office on 1982-04-20 for roof insulation washer. This patent grant is currently assigned to Illinois Tool Works Inc.. Invention is credited to George G. Dewey.
| United States Patent | D263,927 |
| Dewey | April 20, 1982 |
Roof insulation washer
Claims
The ornamental design for a roof insulation washer, as shown.
| Inventors: | Dewey; George G. (Prospect Heights, IL) |
|---|---|
| Assignee: | Illinois Tool Works Inc.
(Chicago, IL) |
| Appl. No.: | 06/092,159 |
| Filed: | November 7, 1979 |
| Current U.S. Class: | D8/399; 411/531; D8/354 |
| Current International Class: | D0808 |
| Field of Search: | ;D8/394-399,354 ;405/259 ;52/698 ;411/371,427,428,436,437,531,533,537,538,542,545-547 ;D7/45 |
References Cited [Referenced By]
U.S. Patent Documents
| D236428 | August 1975 | Stewart |
| D236790 | September 1975 | Bruno et al. |
| 3090203 | May 1963 | Durget |
| 4112693 | September 1978 | Collin |
| 7415863 | Jun 1976 | NL | |||
Attorney, Agent or Firm: Buckman; Thomas W.
Description
FIG. 1 is an isometric view of a roof insulation washer showing my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a sectional view taken in the direction of the arrows on line 3--3 of FIG. 2.
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