Radon exhaust vent cap
Description
FIG. 1 is a side elevation view of a radon exhaust vent cap, showing my new design, the opposite side being a mirror image of that shown;
FIG. 2 is an end elevation view thereof, the opposite end being a mirror image of that shown;
FIG. 3 is a bottom plan view thereof.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
| 363778 | May 1887 | Turner |
| 973139 | October 1910 | Rothbarth |
| 2456232 | December 1948 | With |
| 2839986 | June 1958 | Herman |
| 4109433 | August 29, 1978 | Maze |
| 645705 | May 1937 | DE2 |
| 502260 | September 1937 | GBX |
Patent History
Patent number: D309181
Type: Grant
Filed: Oct 25, 1988
Date of Patent: Jul 10, 1990
Inventor: Ronald F. Simon (Barto, PA)
Primary Examiner: James M. Gandy
Assistant Examiner: Lisa Lichtenstein
Attorney: Edmund M. Jaskiewicz
Application Number: 7/262,005
Type: Grant
Filed: Oct 25, 1988
Date of Patent: Jul 10, 1990
Inventor: Ronald F. Simon (Barto, PA)
Primary Examiner: James M. Gandy
Assistant Examiner: Lisa Lichtenstein
Attorney: Edmund M. Jaskiewicz
Application Number: 7/262,005
Classifications
