Smokestack
Description
FIG. 1 is a perspective view of a smokestack showing my new design; and
FIG. 2 is a cross-sectional view along the line 2--2 in FIG. 1.
Referenced Cited
U.S. Patent Documents
| 1906108 | April 1933 | Schlueter |
| 3733675 | May 1973 | Diederich |
| 4104868 | August 8, 1978 | Jackson |
Patent History
Patent number: D285257
Type: Grant
Filed: Apr 21, 1983
Date of Patent: Aug 19, 1986
Inventor: Alfons O. Krautz (Old Field, NY)
Primary Examiner: A. Hugo Word
Attorney: Richard C. Conover
Application Number: 6/487,442
Type: Grant
Filed: Apr 21, 1983
Date of Patent: Aug 19, 1986
Inventor: Alfons O. Krautz (Old Field, NY)
Primary Examiner: A. Hugo Word
Attorney: Richard C. Conover
Application Number: 6/487,442
Classifications
Current U.S. Class:
Prefabricated Unit (D25/35);
D25/73;
D25/77
