USD223712S - Roof insulation ventilator - Google Patents
Roof insulation ventilator Download PDFInfo
- Publication number
- USD223712S USD223712S US D223712 S USD223712 S US D223712S
- Authority
- US
- United States
- Prior art keywords
- roof insulation
- insulation ventilator
- ventilator
- roof
- view
- Prior art date
Links
- 238000009413 insulation Methods 0.000 title description 8
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Description
Des. 223,712 Patented May 30, 1972 United States Patent Ofi' ROOF INSULATION VENTILATOR Robert W. Mason, Port Cred to Marathon Equipment Ontario, Canada Filed Aug. 21, 1970, Ser. No. 24,632
Term of patent 14 years Int. Cl. D23-04; D2902 US. Cl. D23-153 it, Ontario, Canada, assignor & Supply Limited, Weston,
FIG. 1 is a top perspective view of a roof insulation ventilator showing my new design;
FIG. 2 is a bottom perspective view thereof; and
FIG. 3 is a side elevational view thereof.
I claim:
The ornamentaldesign for a roof insulation ventilator, as shown and described.
References Cited UNITED STATES PATENTS Mason D23153 Scanlon.
Tegarty 98-37 Donegan 98-29 X WALLACE R. BURKE, Primary Examiner S. J. MERCER, Assistant Examiner
Family
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